dc/dc converters selection...

www.rohm.com

DC/DC Converters Selection GuideRev. 8.0

2017-2018

DC/DC Converters Selection Guide www.rohm.com1

Table of Contents ROHM Website

For ROHM’s power supply IC lineup, visit the following ROHM website.

http://www.rohm.com

ROHM provides design and technical data and tools such as data sheets,

application notes, reference designs and Spice model.

http://micro.rohm.com/en/techweb http://deviceplus.comBefore using a ROHM IC, be sure to check its setting values, data and functions

against the latest data sheet.

DC/DC Converters

New Products

Ultra Low Power Switching Regulator

Lineup

2

High Step-down Ratio Switching Regulator 3

Ultra Small Low Ringing Switching Regulator 5

Low Power Consumption Low Input Voltage

Operation Switching Regulator7

Featured Products

BD9x Family Lineup 8

Buck Converter 3.3V, 5V Input 9

Buck Converter 12V Input 11

Buck Converter 24V Input 13

Buck Converter Supporting Maximum 76 V Input 16

Buck Controller Supporting Maximum 56 V Input 17

Isolated Flyback Converter 19

21

Selection Guide 27

http://micro.rohm.com/en/techweb/

http://micro.rohm.com/en/techweb/

http://deviceplus.com/

http://deviceplus.com/


VIN

EN

VSEL1

VSEL2

LX

VOUT

PGND

VIN VOUT

CIN

L1

PGVPG

COUT

10μF22μF

2.2μH 1.2V to 3.3V2.5V to 5.5V

VEN

VSEL1

VSEL2

AGND

Ultra Low Power Switching Regulator

New Products Buck Converter (Integrated Switch FET)

Product example: BD70522GUL

BD70522GUL Application Circuit

Input voltage range : 2.5V to 5.5V

Output voltage range : 1.2V to 3.3V

Output voltage precision : ±2.5%

Output current : 500mA

Current consumption during operation : 180nA

Standby current: 50nA

Efficiency at output current 10μA: >90%

Output voltage setting by pin selection

1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 3.0V, 3.2V, 3.3V

Power good output

100% duty operation

Output discharge function

Various protection functions

Over current protection (OCP), thermal shutdown (TSD),

undervoltage lockout (UVLO)

The BD70522GUL features the ultra low power technology “Nano Energy”, reducing the current consumption to only 180 nA during operation. This allows improvement in

the power efficiency at standby, making wearable and portable devices promising that can be operated for a long time on battery power.

VIN

EN

VSEL1

VSEL2

LX

VOUT

PG

AGND

PGND

BD70522GUL

Conditions

VIN = 3.6V

VOUT = 3.3V

Load Current (mA)

Eff

icie

ncy (

%)

Current productBD70522GUL

Efficiency vs. Load Current

Small CSP Package

VCSP50L1C

1.76mm × 1.56mm × 0.57mmtyp typ max

PCB

7mm × 11mm


High Step-down Ratio Switching Regulator Supporting Maximum 60V Input

Power Supply Solution for Industrial Equipment

The BD9V101MUF-LB features the ultra high-speed pulse control technology “Nano Pulse Control®”, enabling the highest step-down ratio of 24:1 at 2MHz operation. For

example, a voltage of 2.5V can be generated from a 60V power supply even at 2MHz operation. This allows the voltage conversion from a high to low voltage with a single

IC as opposed to the conventional conversion with two or more power supply IC, enabling the device miniaturization and system simplification.

Product example: BD9V101MUF-LB

BD9V101MUF-LB Application Circuit

CPU Unit

48 to 60V

BD9V101MUF-LBIsolated

AC/DC

AC 85V to 265V

3.3V, 1A

Long-term supply indispensable for industrial equipment is assured.

Direct conversion from a high to low voltage can be performed at a high step-down ratio.

Minimum switching ON time: 9ns typ, 20ns max

Input voltage range : 16V to 60V (70V rating)

Output voltage range : 0.8 V to 5.5 V

Reference-voltage : 0.8V±2.0%

Output current : 1.0 A

High-speed transient response characteristics are delivered by controlling the current mode.

Because of synchronous rectification, an external diode is unnecessary.

Soft start to prevent rush current at power ON

Power good output


Over current protection (OCP), short-circuit protection (SCP),

thermal shutdown (TSD), undervoltage lockout (UVLO),

over voltage protection (OVP), over voltage lockout (OVLO),

CPU Unit

48 to 60V

DC/DCIsolated

AC/DC

AC 85V to 265V

3.3V, 1A

DC/DC

12V

Current product

New

VIN

EN

PGOOD

VREG

VMON

SW

BST

BD9V101MUF-LB

PGND

PVIN

FB

COMP

RT

GND



Nano Pulse Control®, the Ultra High-speed Pulse Control Technology

Switching buck DC/DC converters generate the output voltage while controlling the width of

switching pulses. The pulse width is increased when the step-down ratio of the input/output

voltages is lower, and decreased when the ratio is higher. When generating a voltage of 2.5V

from a 60V power supply, the high step-down ratio of 24:1 makes the width of the switching

pulse very narrow. For example, since the switching period is 500ns at the switching

frequency of 2MHz, the step-down ratio of 24:1 results in a very narrow pulse width of 20.8ns.

The Nano Pulse Control technology enables the generation of 9ns pulses.

In the current mode control, a current flowing through the coil is detected. Therefore, when the

pulse width is narrow, the circuit operation becomes unstable since the current cannot be

detected correctly due to a ringing caused by the parasitic inductor inside the circuit. Nano

Pulse Control utilizes ROHM’s unique circuit technology to stabilize the output voltage in the

current mode control even with a narrower pulse width by feeding the coil current back into the

IC without affecting the ringing.

Example of Nano Pulse

VIN

20V/div

VOUT

1V/div

VIN=48V, VOUT=1V, fSW=2.2MHz

200ns/div

Switching

pulse width

9.5ns

18 mm × 20 mm = 360 mm2

BD9V101MUF-LB PCBCurrent PCB

47mm × 25mm = 1175mm2

-69%

By increasing the switching frequency to 2MHz, the size of external

components (coils) is reduced, making the surface mounted smaller. In

addition, changing the configuration of converter step-down from two-step to

one-step enables the space saving.

Moreover, increasing the switching frequency to 2MHz has no effect on the

AM radio (MW) band.

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tectio

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Over-

Volta

ge

Pro

tectio

n

BD9V101MUF-LB 70 1 16～60 0.8～5.5 1.9～2.3 Current - - -Recov

ery

Recov

ery

Tj

-40～+150VQFN24FV4040

Operating

Temperature

()

PackageControl

Mode

Features

Switching

Frequency

(MHz)

Part No.

Input

Voltage

Maximum

Rating

(V)

Output

Current

(A)

Input

Voltage

Range

(V)

Output Voltage

(V)


Ultra Small Low Ringing Switching Regulator

17 mm × 20 mm = 340 mm2

12 mm × 15 mm = 180 mm2

22 mm × 25mm = 550 mm2

-38% -47%

UMMP008Z2020HTSOP-J8

6.0 mm × 4.9 mm = 29.4 mm2 2.0 mm × 2.0 mm = 4.0 mm2

-86%

Space saving

Output 3A

Large current

per area

Product example: BD9D322QWZ

BD9D322QWZ Application Circuit

Input voltage range : 4.5 V to 18 V

Output voltage range : 0.765 V to 7.0 V

Reference-voltage : 0.765 V±1.6 %

Output current : 3 A

Switching frequency: 700kHz

Integrated switch FET: 80mΩ, 50mΩ

Current consumption : 0.7mA

High speed transient response characteristics

with constant-on-time control

Light-load high-efficiency mode

Adjustable soft start


Over current protection (OCP),

thermal shutdown (TSD),


EN

VIN

BOOT

BD9D322QWZ

SW

FB

VOUT

SS

VREG

CBOOT

L

R2

R1

GND

Enable

CVREG CSS

CFB

CIN

COUT

VIN VIN

EN

GND

VREG

SS

BOOT

SW

FB

BD9D322QWZ

0

10

20

30

40

50

60

70

80

90

100

0.01 0.1 1 10

Load Current (A)

Efficiency [%]


Conditions

VIN = 12V

VOUT = 5.0V

The BD9A302QWZ, BD9B304QWZ, BD9D322QWZ, and BD9D323QWZ adopt ultra small packages, reducing the surface mounted as well as the parasitic inductance

existing inside the circuit. In addition, the ringing in the switching waveform and unwanted radiation are reduced by decreasing the trace area of a loop that has a large

variation in the switching current on the PCB.


Ultra Small Package


Co

ntr

olle

rVOUT

VIN

GND GND

10ns/div2V/div

The parasitic inductance and unwanted radiation are

reduced by decreasing the trace area of a loop that has a

large variation in the switching current.

Low Ringing, Low EMI

2V/div10ns/div

Current product BD9D322QWZ

Switching Waveform

EMI Waveform

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BD9A302QWZ 7 3 2.7～5.5 0.8～(VIN×0.7) 1 Current - - Recov

ery

Recov

ery-40～+85

UMMP008AZ020

(2.0×2.0×0.4）

BD9B304QWZ 7 3 2.7～5.5 0.8～(VIN×0.8) 1 / 2 On-time - - DeepRecov

ery

Recov

ery-40～+85

UMMP008AZ020

(2.0×2.0×0.4）

BD9D322QWZ 20 3 4.5～180.765～7.0

(VIN×0.07)～(VIN×0.65)0.7 On-time -

Recov

ery

Recov

ery-40～+85

UMMP008Z2020

(2.0×2.0×0.4）

BD9D323QWZ 20 3 4.5～180.765～7.0

(VIN×0.07)～(VIN×0.65)0.7 On-time - -

Recov

ery

Recov

ery-40～+85

UMMP008Z2020

(2.0×2.0×0.4）

Package

(W×D×H mm)

Switching

Frequency

(MHz)

Control

Mode

Features

Operating

Temperature

()

5V

12V

Part No.

Input

Voltage

Maximum

Rating

(V)

Output

Current

(A)

Input

Voltage

Range

(V)

Output Voltage

(V)

Input Power

Rail Voltage


50

60

70

80

90

100

0.01 0.1 1 10 100 1000

Eff

icie

ncy (

%)

Load Current (mA)

Low Power Consumption Low Input Voltage Operation Switching Regulator

New Products

Product example: BU33UV7NUX

BU33UV7NUX Application Circuit

Input voltage range : 0.6 V to 4.5 V

Output voltage : 3.3V (+1.3%/-1.15%)

Startup voltage : 0.9 V

Output current : 500mA (VIN > 1.8V, High Power Mode)

: 50mA (VIN > 1.8V, Low Power Mode)

Supply current : 13μA (High Power Mode)

: 7μA (Low Power Mode)

Power down current : 2.7μA

Switching frequency : 800kHz

Integrated function to disconnect between the input and output when ENABLE is OFF or UVLO is activated

In the High Power mode, automatic switching between PFM/PWM operations according to the load current

In the Low Power mode, saving the supply current with PFM constant operation

Pass through operation when VIN > VOUT

Output discharge function

Integrated voltage detector circuit to prevent cell leakage

(detection voltage at 1.5V assuming two dry cells)


Undervoltage lockout (UVLO), over voltage protection (OVP),

over current protection (OCP), short-circuit protection (SCP), thermal shutdown (TSD),

The BU33UV7NUX is a boost DC/DC converter, which generates a voltage of 3.3V from a single- or double-cell power supply. The startup voltage is low at 0.9V. Once

started up, it can output 3.3V until the battery voltage drops to 0.6V. In addition, since the current consumption is designed to be low with the supply current being 13μA,

it can contribute to long life of the battery operation.

EN

VIN

SW

PGND

FB

VOUTCIN

AGND

RSTB

VOUTCOUT

L: 4.7μHVIN

MODE

INTLDO1μF

VIN

INTLDO

AGND

RSTB

VOUT

SW

PGND

FB

MODE

BU33UV7NUX

EN

Conditions

VIN = 2.5V

VOUT = 3.3V


BU33UV7NUX

Low Power Mode

BU33UV7NUX

High Power Mode

Current product

Small Package

VSON10X3020

3.0 mm × 2.0 mm × 0.6 mmtyp typ max

Conditions:

Battery capacity 2Ah

VIN=1.2V

VOUT=3.3V

IOUT = 50μA

IC Battery life (days)

BU33UV7NUX

Low Power Mode712

BU33UV7NUX

High Power Mode657

Current product 537

Battery Life Comparison

+120

+175

PCB

15 mm × 18 mm

New Products Boost Converter (Integrated Switch FET)


ROHM’s single output buck DC/DC converters

provide a power supply solution that satisfies

your specification requirements based on a

matrix of input voltage and output current. In the

product name of BD9x Family, the numeric value

“9” following “BD” represents the “buck” topology,

the subsequent alphabet represents the

maximum rated input voltage and the

subsequent numeric value represents the output

current.

BD9x Family Lineup

B D 9 A 3 0 0

Topology

9 : Buck

8 : Boost, Buck-Boost,

Inverting

Output Current

1 : ≤ 1A

2 : ≤ 2A

3 : ≤ 3A

4 : ≤ 4A

・・

A：≤ 10A・

Z : Controller

Serial No.

00, 01, 02, ･･･

Maximum Rated Input

Voltage and Control Mode

A : ≤ 7V Current Mode

B : ≤ 7V On-time

C : ≤ 20V Current Mode

D : ≤ 20V On-time

E : ≤ 40V Current Mode

F : ≤ 40V On-time

G, V : ≤ 80V Current Mode

Part No. Description

Note: There are some part numbers that do not conform with this

rule 60

Input Power Rail Voltage (V)

3.3 5.0 12 24 48

6.0

5.0

4.0

3.0

2.0

1.0

0.5

Outp

ut

Curr

ent

(A) BD9Axxx

BD9BxxxSeries

BD9Cxxx

Series

BD9Exxx

Series

BD9Gxxx

Series

BD9Gxxx

Series

BD9Vxxx

Series

BD9Dxxx

Series

Featured Products Buck Converter (Integrated Switch FET)


3.3V/5V Input

Power Supply Solution for Consumer Equipment

BD9A100MUV

NAND Flash Memory

Controller

- DDR controller

- NAND Flash controller

- I/F

- I/O

5V or 3.3V

BD9B300MUV

BD9A100MUV

BD9A300MUVor

BD9A600MUV

DDR Memory

PC/Tablet board

Enable

Product example: BD9B300MUV

BD9B300MUV Application Circuit

Input voltage range ： 2.7V to 5.5V

Output voltage range ： 0.8V to (VIN×0.8)V

Reference-voltage ： 0.8V±1.0%

Output current ： 3A

Switching frequency ： 1MHz / 2MHz

Integrated switch FET ： 35mΩ

Current consumption ： 35μA

High speed transient response characteristics

with constant-on-time control

Light-load high-efficiency mode

Selectable between light-load automatic switching

mode and PWM constant mode

Adjustable soft start

Power good output


Over current protection (OCP), short-circuit

protection (SCP), thermal shutdown (TSD),



0

10

20

30

40

50

60

70

80

90

100

0.001 0.01 0.1 1 10

EFFI

CIEN

CY (

%)

LOAD CURRENT (A)

Conditions

VIN = 5.0V

VOUT = 1.8V

fSW = 1MHz

BD9B300MUV light-load automatic switching mode

BD9A300MUV light-load automatic switching mode

BD9A300MUV

PWM constant

mode

BD9B300MUV PCB

15mm×8mm

3.3V, 3A

3.3V, 6A

1.8V, 1A

2.5V, 1A

1.2V, 3A

EN

PVIN

BOOT

FREQ

BD9B300MUV

PGD

SW

FB

VIN

VOUT

AVIN

SS

PGD

MODE

AGND

PGND

Enable10µF

0.1µF

CSS

R2

R1

CBOOT

22µF×2CFB

1.0µH

PVIN

AVIN

EN

AGND

PGND

SS

MODE

FREQ

PGD

BOOT

SW

FB

BD9B300MUV

Example: Storage

The BD9A100MUV, BD9A300MUV, BD9A600MUV and BD9B300MUV generate a low voltage of about 1.8 V from

power supplies of 5V or 3.3V.



Selectable from Two Series Depending on the System

Product name Control modeLight-load

operationFunctional difference

BD9BxxxMUV Constant-on-timeDeep Light-load

Mode

• Constant-on-time control helps implement transient response faster than that of the BD9AxxxMUV.

• Phase compensation is unnecessary.

• Efficiency across the entire load range is further improved over the BD9AxxxMUV.

• The product operates in the light-load automatic switching mode by setting the MODE pin to Low

and in the PWM constant mode by setting it to High.

• The product operates at 2 MHz by setting the FREQ pin to Low and at 1 MHz by setting it to High.

A small 1 μH coil can be used at 2 MHz.

BD9AxxxMUV Current mode Light-load Mode

• The product operates in the PWM constant mode by setting the MODE pin to Low and in the

light-load automatic switching mode by setting it to High.

(This is the same function as the BD9Bxxx Series, but the logic is reversed.)

High performance

UpperCompatible

The BD9AxxxMUV Series and BD9BxxxMUV Series consist of pin-compatible ICs of 1A to 6A. Thus, you can select the best IC for your application. These series operate in

the PWM mode for an application with high load current, and automatically switch to power-saving operation with light-load mode (PFM mode) for an application with low load

current. The BD9BxxxMUV is a high-performance version of the BD9AxxxMUV series. Both versions can be interchangeably replaced by changing the PCB layout of a single

pin. Also, by drawing a PCB layout compatible with both series in the initial stage of development, ICs can be easily changed.

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BD9A100MUV

BD9A101MUV-LB

-

-

1

-40～+85

-40～+125

BD9A300MUV

BD9A301MUV-LB

-

-

3

-40～+85

-40～+125

BD9A400MUV - 4 -40～+85

BD9A600MUV - 6 -40～+85

BD9B100MUV - 1 -40～+85

BD9B200MUV - 2 -40～+85

BD9B300MUV

BD9B301MUV-LB

-

-

3

-40～+85

-40～+125

BD9B400MUV - 4 -40～+85

BD9B500MUV - 5 -40～+85

BD9B600MUV - 6 -40～+85

BD9A302QWZ - 3 0.8～(VIN×0.7) 1 Current - - Recovery Recovery -40～+85

BD9B304QWZ - 3 0.8～(VIN×0.8) 1 / 2 On-time - - Deep Recovery Recovery -40～+85

BD9B331GWZ - 3 Latch -40～+85UCSP30L1

(1.98×1.8, h:0.33)

BD9B333GWZ - 3 Deep Recovery -40～+85UCSP35L1

(1.98×1.8, h:0.4)

7 2.7～5.5 UMMP008AZ020

7 2.7～5.5 0.6～(VIN×0.8) 1.3 On-time Recovery

Recovery Recovery

VQFN016V3030

2.7～5.5 0.8～(VIN×0.8) 1 / 2 On-time Deep Recovery Recovery

7

2.7～5.5 0.8～(VIN×0.7) 1

Part No.

Input

Voltage

Maximum

Rating

(V)

Output

Current

(A)

Input

Voltage

Range

(V)

Output Voltage

(V)

Switching

Frequency

(MHz)

Control

Mode

Features

Operating

Temperature

()

Package

(mm)

Grade

Current


12V Input

Power Supply Solution for Consumer Equipment

Tuner, AV broad

12VBD9D320EFJ

BD9D321EFJ

USB ports

Isolated

AC/DC

The BD9D320EFJ, BD9D321EFJ, BD9C301FJ, BD9C401EFJ, BD9C501EFJ and BD9C601EFJ generate

voltages of 5V and 3.3V from a 12V power supply.

AC 85 ～ 265 V

1.8V, 3A

5V, 3A

5V, 3A

DDR Memory

BD9C301FJBD9C401EFJBD9C501EFJBD9C601EFJ

Controller

- DDR controller

- I/F

- I/O

3.3V, 3A

3.3V

3A, 4A,

5A, 6A

BD9D321EFJ Application Circuit

BD9D321EFJ - Efficiency vs. Load Current

0

10

20

30

40

50

60

70

80

90

100

0.001 0.01 0.1 1 10

EFFI

CIE

NC

Y (%

)

LOAD CURRENT (A)

Conditions

VIN = 12V

VOUT =5.0V

VOUT = 3.3V

VOUT = 1.8V

EN

VINBOOT

BD9D321EFJ

SW

FB

VOUT

SS

VREG

10µF×2 CBOOT

2.2µH

22µF×2

R1

R2

GND

Enable

CVREG CSS

0.1µF+

VIN VIN

EN

GND

VREG

SS

BOOT

SW

FB

BD9D321EFJ

BD9D320EFJ

BD9D321EFJ

BD9D320EFJ

BD9D321EFJ

BD9D320EFJ

BD9D321EFJ

Example: AV equipment

Product example: BD9D321FEJ

Input voltage range ： 4.5V to 18V

Output voltage range ： 0.765V to 7.0V, (VIN×0.07)V to (VIN×0.65)V


Output current ： 3A

Switching frequency ： 700 kHz

Integrated switch FET ： 100mΩ, 70mΩ

High speed transient response characteristics with constant-on-time control

Phase compensation parts are unnecessary.

A ceramic capacitor is available for output.

Synchronous rectification type

Light-load high efficiency mode

Adjustable soft start that prevents rush current at power ON



thermal shutdown (TSD), undervoltage lockout (UVLO)



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BD9C301FJ

BD9C301FJ-LB

-

-

3

-40～+85

-40～+125SOP-J8

BD9C401EFJ 4 -40～+85 HTSOP-J8



BD9D320EFJ 3 -

BD9D321EFJ 3

BD9D322QWZ 3

BD9D323QWZ 3 -

-40～+85 HTSOP-J8

20 4.5～18

0.765～7.0

(VIN×0.07)～(VIN×

0.65)

0.7 On-time - Recovery Recovery -40～+85 UMMP008Z2020

20 4.5～180.765～7.0

(VIN×0.07)～(VIN×0.65)0.7 On-time

20 4.5～18

(VIN×0.125)～(VIN×0.7)

(VIN×0.125)≧ 0.8

0.5 Current

(VIN×0.075)～(VIN×0.7)

(VIN×0.075)≧ 0.8

Package

Switching

Frequency

(MHz)

Part No.

Input

Voltage

Maximum

Rating

(V)

Output

Current

(A)

Input

Voltage

Range

(V)

Output Voltage

(V)

Grade

Control

Mode

Features

Operating

Temperature

()

- - - Latch Recovery

- Recovery Recovery

BD9D321EFJ Transient

Response Characteristics

VOUT

50mV/div

ILOAD

2A/div

100μs/div

BD9D321EFJ PCB

17mm×20mm

VIN = 12V

VOUT = 1.8V

IO = 1A→3A→1A


24V Input

Power Supply Solution for Industrial Equipment

The BD9E100FJ, BD9E101FJ, BD9E300EFJ, BD9E301EFJ and BD9E303EFJ generate voltages of 5V

and 3.3V from power supplies of 24V and 12V.

BD9E303EFJ-LB Application Circuit

0

10

20

30

40

50

60

70

80

90

100

0 0.5 1 1.5 2 2.5 3

EFFI

CIE

NC

Y (%

)

LOAD CURRENT (A)

Conditions

VIN = 24V

VOUT=5.0V


BD9E303EFJ-LB

BD9E300EFJ-LB

BD9E300EFJ-LB

Base Unit

- ASIC

24V

BD9E303EFJ-LB

BD9E101FJ-LB

BD9E100FJ-LB

I/O Unit

- ASIC

Isolated

AC/DCAC 85 ～ 265 V

5V, 2.5A

5V, 1A

3.3V, 1A

Analog Unit

- ASIC

1.8V, 3ACPU Unit

- CPU

Efficient heat radiation characteristics

owing to exposed pad

Product example: BD9E303EFJ-LB

Long-term supply indispensable for industrial equipment is assured.

Supports an input rating of 40V that is greatly demanded for

industrial equipment.

Input voltage range ： 7.0V to 36V (40V rating)

Output voltage range ： (VIN×0.06)V to (VIN×0.8)V

(VIN×0.06)1.0V


Output current ： 3.0A

Built in low ON-resistance switch FET: 90mΩ, 80mΩ

High-speed transient response characteristics are delivered by

controlling the current mode.

Because of synchronous rectification, an external diode is

unnecessary.






VIN

24V

Enable

VIN

EN

COMP AGND PGND FB

SW

BOOT

10μF

15kΩ

6800pF

30kΩ

7.5kΩ

0.1μF

10μH

22μF×2

BD9E303EFJ-LB

VOUT

0.1μF

2

3

6 4 7 5

8

1VIN

EN

AGNDCOMP

BOOT

SW

FB

BD9E303EFJ-LB

PGND


Selectable According to System

Product name FeatureSwitching

frequency

Inductor

value

FET ON-

resistanceEfficiency

Output

current

Maximum

duty ratio

Minimum

duty ratioPCB size

BD9E300EFJ-LBSmall space-saving

size1MHz 4.7μH

170mΩ

140mΩ

See the upper-

right figure on

previous page.

2.5A 70% 15%27mm×10mm

270mm2

BD9E303EFJ-LB Low heat generation 300kHz 10μH90mΩ

80mΩ

See the upper-

right figure on

previous page.

3A 80% 6%33mm×15mm

495mm2

The BD9E300EFJ-LB and BD9E303EFJ-LB are both buck DC/DC converters with a power rail input of 24V, but they have been developed based on different concepts.

Since the BD9E300EFJ-LB is a high-speed type with a switching frequency of 1 MHz, a small inductor can be used to assure space-savings of the PCB mounting area.

Since the BD9E303EFJ-LB has a integrated FET of low ON-resistance and a low switching frequency of 300 kHz, it assuredly reduces switching-loss and minimizes

heat generation with high efficiency.C

onsum

er

Industr

ial

Pow

er

Good

Adju

sta

ble

Soft

Sta

rt

Synchro

nous

Rectif

ier

Lig

ht-

Load

Effic

iency

Over-

Curr

ent

Pro

tectio

n

Therm

al

Pro

tectio

n

Over-

Volta

ge

Pro

tectio

n

BD9E100FJ-LB - 1(VIN×0.15)～(VIN×0.7)

(VIN×0.15)≧ 1.01

BD9E101FJ-LB - 1(VIN×0.0855)～(VIN×0.7)

(VIN×0.0855)≧ 1.00.57

BD9E300EFJ-LB - 2.5(VIN×0.15)～(VIN×0.7)

(VIN×0.15)≧ 1.01

BD9E301EFJ-LB - 2.5(VIN×0.0855)～(VIN×0.7)

(VIN×0.0855)≧ 1.00.57

BD9E303EFJ-LB - 3(VIN×0.06)～(VIN×0.8)

(VIN×0.06)≧ 1.00.3

BD9E102FJ - 1 7.0～26 0.57 SOP-J8

BD9E302EFJ - 3 7.0～28 0.55 HTSOP-J8

BD9E151NUX - 30 1.2 6.0～28(VIN×0.06)～(VIN×0.7) *1

(VIN×0.06)≧ 1.00.6 Current - - - Recovery Recovery -40～+85 VSON008X2030

BD9G101G - 45 0.5 6.0～42(VIN×0.15)～(VIN×0.7)

(VIN×0.15)≧ 1.01.5 Current - - - - Recovery Recovery - -40～+105 SSOP6

BD9V101MUF-LB - 70 1 16～60 0.8～5.5 1.9～2.3 Current - - Recovery Recovery -40～+150 VQFN24FV4040

-40～+85

SOP-J8

HTSOP-J8

Recovery Recovery 30(VIN×0.143)～(VIN×0.7)

(VIN×0.143)≧ 1.0Current - -

- Recovery Recovery -40～+150

Control

Mode

Features

Switching

Frequency

(MHz)

Part No.

Input

Voltage

Maximum

Rating

(V)

Output

Current

(A)

Input

Voltage

Range

(V)

Output Voltage

(V)

Grade

40 7.0～36 Current - -

Operating

Temperature

()

Package

*1 Restrictions depend on input/output voltage conditions.


Power Supply Solution for Home Appliances

The BD9E102FJ and BD9E302EFJ generate voltages of 5V and 3.3V from power supplies of 24V and 15V.

Replacement of the LDO enables energy-savings and reduced heat generation.

BD9E102FJ Application Circuit

BD9E102FJ Evaluation Board

・ Motor driver

・IPM (Intelligent Power Module)

15VSensor and monitor

- Thermistor (Refrigerator)

- Thermistor (Freezer)

- CO2 sensor

Isolated

AC/DC

AC 85 ～ 265 V

5.0V, 1A

Controller

- Digital signal controller

- Network

- Touch screen

- Compressor

15V 5.0V, 3A0

10

20

30

40

50

60

70

80

90

100

1 10 100 1000

EFFI

CIE

NC

Y (%

)

LOAD CURRENT (mA)

Conditions

VIN = 12V

VOUT = 5.0V

BD9E102FJ - Efficiency vs. Load Current

BD9E102FJ

LDO

(BA50BC0WT)

BD9E102FJ

Example: Refrigerator

VIN

12V

Enable

VIN

EN

COMP AGND PGND FB

SW

BOOT

10μF

430kΩ

82k

0.1μF

6.8μH

22μF

BD9E102FJ

VOUT

5.0V

VIN

EN

AGNDCOMP

BOOT

SW

FB

BD9E102FJ

PGND

BD9E302EFJ

Replaces LDO

Replaces LDO

24V Input

Product example: BD9E102FJ


Output voltage range ： (VIN×0.143)V to (VIN×0.7)V

(VIN×0.143)1.0V



Switching frequency ： 570 kHz

Supports an input rating of 28V that is greatly demanded for electric

home appliances.

The excellent efficiency under light load is ideal for equipment that

needs to suppress standby power consumption.

Integrated switch FET ： 250mΩ, 200mΩ

High-speed transient response characteristics are delivered by

controlling the current mode. Phase compensation can be set easily.

Because of synchronous rectification, an external diode is

unnecessary.







Supporting Maximum 76 V Input

Product example:BD9G341AEFJ

BD9G341AEFJ Application Circuit Efficient heat radiation

characteristics owing to exposed

pads

VIN VIN

EN

RT GND VC FB

LX

BST

10μF

3k

750

0.1μF

33μH

100μF

BD9G341EFJ

VOUT

5.0V

VIN

EN

GNDRT

BST

LX

FB

BD9G341AEFJ

VC

The BD9G341AEFJ is a 1-ch buck switching regulator with a integrated switch FET of 80 V rating (76 V input). Since sufficient voltage margin is ensured in a 48 V bus

line adopted by communication infrastructures, this switching regulator easily enables safe power supply design in high voltage applications such as telephones, routers

and base stations.

BD9G341AEFJ - Efficiency vs. Load Current

5ms/div

Output current

2A/div

LX pin voltage

20V/div

In the event of an output short-circuit, the over current

protection circuit is used in the hiccup mode to prevent

IC heating and destruction.

IC Surface Temperature in Output Short-Circuit

BD9G341AEFJ Competitor product Input voltage range ： 12V to 76V (80V rating)

Output voltage range ： 1.0V to VIN*1

*1 Limitations apply under some

conditions.



Integrated switch MOSFET of 80 V rating: 150mΩ

High-speed transient response characteristics are delivered

by controlling the current mode. Phase compensation can be

set easily.


Operating frequency can be set from 50 kHz to 750 kHz.

Precise EN threshold: ±3%


Over current protection (OCP), overvoltage protection (OVP),


0

10

20

30

40

50

60

70

80

90

100

1 10 100 1000EF

FIC

IEN

CY

(%)

LOAD CURRENT (mA)3000

Conditions

VIN = 48V

VOUT = 5.0V

fSW=300kHz

+21.3%

+16.3%

+1.5%

BD9G341AEFJ

Competitor

product



Buck Controller Supporting Maximum 56 V Input

Product example: BD9611MUV

The BD9611MUV is a rated 60 V synchronous rectification type buck DC/DC controller that enables high voltage input and a wide input voltage range. This model incorporates

the control circuit in the PWM and has voltage modes and drive circuit for two external 10V N-ch FETs. The oscillating frequency and soft start time adjustment function, over

current protection function and synchronization function with external clock featured in this model enable flexible design. In addition, a low input malfunction prevention circuit

(EXUVLO) of precise reference voltage is connected to the CTL pin, and can be adjusted from the VCC-GND resistance ratio. Pre-bias is supported to suppress current

incoming from the output side at startup.

Buck Controller (External Switch FET)

BD9611MUV Application Circuit

Input voltage range ： 10V to 56V (60V rating)

Output voltage range ： 1.0V to (VIN×0.8)V


Integrated drive circuit for external N-ch FET

Gate drive voltage ： 9.0V to 11V

Pre-bias supported

Adjustable soft start that prevents rush current at power ON

Operating frequency can be set from 50 kHz to 500 kHz.

UVLO value can be set with an external component.

Synchronization with external clocks is available.

Multi-channel output synchronization using multiple ICs is available.


Over current protection (OCP), thermal shutdown (TSD), undervoltage lockout (UVLO)

BD9611MUV - Efficiency vs. Load Current

Efficient heat radiation characteristics owing

to exposed pad

FB

GND

CLH

BD9611MUV

PGND

INV

SS

REG5

RTSS

RT

SYNC

CLKOUT

CLL

RCL

BST

HG

LX

REG10

LG

VCCCTL

BD9611MUV Transient Response

Characteristics

VIN = 34V, VOUT = 12V, IO= 0A → 10A70%

75%

80%

85%

90%

95%

100%

0 2 4 6 8 10 12

Effi

cien

cy

Load Current[A]

VIN=24V

VIN=36V

VIN=48V

Conditions

VOUT = 12V

fSW = 250kHz

Featured Products


200 W Power Supply Solution

Input voltage ： 40V

Output voltage ： 24V

Output current ： 0.01A to 8A

Switching frequency ： 100kHz

BD9611MUV - Efficiency vs. Load Current

PCB Temperature Distribution

Ta = 25

IC : 57.4

High-side FET : 56.1

Low-side FET : 58.9

Inductor : 56.2

SS

GND

INV

FB

RCL

BST

HG

LX

REG10

LG

REG

5

CTL

VC

C

CLH CLL

RT

RTS

S

CLK

OU

T

PGN

D

SYN

C

BD9611MUV

CIN

VIN

4.7μ HCOUT1

11

12

13

14

15

1617181920

1

2

3

4

5

6 7 8 9 10

VOUTDI1

TR1

RU1

RD1

R1

C1

C2

R2

RCL

RT CRTSS

CSS

CREG5 R7R5

CVCC

RS

RHG

CBST

RSNB

CSNBCREG10

TR2

L1

COUT2

BD9611MUV 200W Output Application Circuit

GND

CLO

BST

BD9611MUV

PGND

SS

INV

FB

RCL

REG5 VCC

RTSS

CLH

HG

LX

SYNC

REG10

RT

LG

CLLCTL

RSD221N06×3

RSD221N06

RB161VA-20

0

10

20

30

40

50

60

70

80

90

100

0 1 2 3 4 5 6 7 8

EF

FIC

IEN

CY

(%

)

LOAD CURRENT (mA)

Conditions

VIN = 40V

VO = 24V

fSW = 100kHz


Flyback Converter

Product example ：BD7F100HFN-LB, BD7F100EFJ-LB


Switch pin voltage ： 50V (60V rating)

Switch current limit ：1.25A

Operating frequency ： 400kHz

Reference-voltage ： ±1.5%

High-speed load response is implemented by adaptive on-time control.

Frequency-constant operation facilitates EMC solutions.

The automatic light-load mode realizes high efficiency across the entire load range.

Elimination of components across the isolation boundary improves functional safety.

Elimination of components of finite service-life enables long operation.

Multi-output configurations of excellent cross-regulation are supported.

Load compensation function integrated in the secondary SBD

Output voltage can be set from two external resistors and the transformer winding ratio.

Integrated soft start function


Over current protection (OCP), thermal shutdown (TSD), undervoltage lockout (UVLO)

The BD7F100HFN-LB and BD7F100EFJ-JB are ICs for newly developed isolated flyback DC/DC converters. Since control of the primary side flyback voltage stabilizes

the secondary side output, an output feedback path is unnecessary. This eliminates the optocoupler that is required by general isolated converters to isolate the feedback

path. Accordingly, owning to the cost reduction and elimination of components required to ensure a long service-life, unit reliability can be improved. In terms of

performance, high-speed load response is implemented using adaptive on-time control and the automatic light-load mode realizes high efficiency across the entire load

range. In addition, cross-regulation is dramatically improved. These models are suitable for isolated power supplies for various industries, such as power supplies for

isolated gate drivers of inverters.

BD7F100HFN-LB

BD7F100HFN-LB

BD7F100HFN-LB

MCU

VINVIN

Isolator

VIN VOUT_UH

GND_UH

VOUT_UH

GND_UH

Gate Driver

VOUT_UH

GND_UH

UH

VIN

Isolator

VIN VOUT_WH

GND_WH

VOUT_WH

GND_WH

Gate Driver

VOUT_WH

GND_WH

WH

VIN

Isolator

VIN VOUT_L

GND_L

VOUT_L

GND_L

Gate Driver

VOUT_L

GND_L

UL

Isolator Gate Driver WL

Example: Inverter

FB

SW

VIN

VOUT+5V, 1A

VOUT-

SDX/EN

COMP

AGND REF PGND

VIN

24V

10µF 47µF

3.9kΩ

63µH 7µH

SBDBD7F100HFN-LB

3 : 1

SBD

SDX/EN

COMP

AGND

VIN

FB

PGND

BD7F100HFN-LB

REF

SW

BD7F100HFN-LB

HSON8

2.90mm×3.00mm×0.60mm

BD7F100EFJ-LB

HTSOP-J8

4.90mm×6.00mm×1.00mmBD7F100HFN-LB Application Circuit

24V→5V

Featured Products Isolated DC/DC Power Supply


BD7F100HFN-LB Application Circuit

24V→±15V

Effect of Load Compensation Function

“Load compensation function” that corrects output

voltage drops caused by the Vf characteristics of

the secondary side SBD that is dependent on load

current

4.75

4.8

4.85

4.9

4.95

5

5.05

5.1

5.15

5.2

5.25

0 200 400 600 800 1000

OU

TPU

T V

OLT

AG

E (V

)

LOAD CURRENT (mA)

With load

compensation

Without load

compensation

Conditions

VIN = 24V

VOUT = 5.0V

BD7F100HFN-LB Evaluation Board

0

1

2

3

4

5

6

7

8

0 5 10 15 20 25 30 35 40 45 50

MA

XIM

UM

OU

TP

UT

PO

WE

R (

W)

VIN VOLTAGE (V)

BD9F100HFN-LB Maximum Output Power vs. Input

Power Supply Voltage

BD7F100HFN-LB

MCU

DE

DI

RO

Vcc1 Vcc2

Vcc1 Vcc2Vcc1

Isolator

RS485 transceiver

Example: RS485 Transceiver

FB

SW

VIN

VOUT+5V, 240mA

VOUT-

SDX/EN

COMP

AGND REF PGND

VIN

5V

10µF 22µF

3.9kΩ

10µH 40µH

SBDBD7F100HFN-LB

1 : 2

SBD

SDX/EN

COMP

AGND

VIN

FB

PGND

BD7F100HFN-LB

REF

SW

BD7F100HFN-LB Application Circuit

5V→5V

FB

SW

VIN

SDX/EN

COMP

AGND REF PGND

VIN

24V

10µF 10µF

3.9kΩ

50µH

SBDBD7F100HFN-LB

1 : 1 : 1 VOUT+15V,220mA

COM

50µH

50µH10µF

VOUT--15V, -220mA

SBD

SBD

SDX/EN

COMP

AGND

VIN

FB

PGND

BD7F100HFN-LB

REF

SW


Lineup of Single Output Buck Converters (Integrated Switch FET)

Unless otherwise specified: - Current mode control - Soft start - Synchronous rectification - Enable

Ou

tpu

t c

urr

en

t (A

)

24V12V5V3.3V

Input voltage (V)

VOUT (V) PackageSW Freq.

(MHz)

2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 14 15 18 28 32 42 56 76

VQFN016V30301.0 / 2.0

VQFN016V30301.0

0.35 to 0.8

0.5

0.8 to (VIN×0.7)

VQFN024V4040

HTSOP-J8

0.8 to (VIN×0.8)2.9V PGD

PGD

PGD

20V

6.0

On

, Adj.SS

, Adj.SS

BD95861MUV

BD9C601EFJ

BD9B600MUV

BD9A600MUV

20V

(VIN×0.075) to (VIN×0.7)(VIN×0.075) ≥ 0.8V

HTSOP-J80.520V

5.0

BD9C501EFJ(VIN×0.075) to (VIN×0.7)

(VIN×0.075) ≥ 0.8V

1.0 / 2.0 0.8 to (VIN×0.8) T.B.D. (QFN)PGD, Adj.SSOn BD9B500MUV

0.8 to (VIN×0.5)(VIN×0.5) ≤ 5.5V

0.8 to 3.3 *11.0

0.8 to 3.3 *11.0

0.5 to 0.8

0.38

0.5

4.0

20V 0.9 to (VIN×0.9) HTSOP-J8

VQFN016V3030

VQFN020V4040

VQFN020V4040

HTSOP-J8

2bit VID

PGD

20V

Adj.SS

BD95841MUV

BD9C401EFJ

BD9327EFJ / -LB4.75V

BD9137MUV

BD91361MUV

(VIN×0.125) to (VIN×0.7)(VIN×0.125) ≥ 0.8V

1.0

1.0 / 2.0 0.8 to (VIN×0.8)

0.8 to (VIN×0.7)

VQFN016V3030

VQFN016V3030PGD

PGD, Adj.SS

, Adj.SS

On

BD9A400MUV

BD9B400MUV

0.8 to (VIN×0.5)(VIN×0.5) ≤ 5.5V

*1 Limitations apply according to input/output voltage

0.2 to 1.0 0.7 to 5.0 VQFN040V6060PGDH3 , Adj.SSBD95500MUV 20V

0.2 to 1.0 0.7 to 5.0 VQFN032V505030V PGD, Adj.SSBD95514MUV

8.0

0.8 to (VIN×0.8)1.7 VQFN20U4040MPGD, Adj.SSBD91364BMUU2.9V , Remote senseOn

H3

H3

H3

- PWM mode

- Light-load efficiency

On - On-time control - Maximum rating PGD – Power good

H3 - H3RegTM control - Non-synchronous rectification Adj.SS – Adjustable soft start

http://www.rohm.com/web/global/products/-/product/BD95861MUV

http://www.rohmsemiconductor.com/web/global/products/-/product/BD9C601EFJ

http://www.rohm.com/web/global/products/-/product/BD9A600MUV

http://www.rohm.com/web/global/products/-/product/BD9C501EFJ


http://www.rohm.com/web/global/products/-/product/BD9C401EFJ




http://www.rohm.com/web/global/products/-/product/BD9327EFJ


http://www.rohm.com/web/global/products/-/product/BD9327EFJ-LB




http://www.rohm.com/web/global/products/-/product/BD91364AMUU


24V12V5V3.3V

Lineup of Single Output Buck Converters (Integrated Switch FET) Continued

Ou

tpu

t c

urr

en

t (A

)


2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 14 15 18 28 32 42 56 76 Input voltage (V)2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 14 15 18 28 32 42 56 76

0.8 to 3.3 *11.0

0.8 to 2.5 *11.0

0.8 to 3.3 *11.0

HTSOP-J81.0

3.3 VQFN020V40401.0

3.0 0.75

0.38

SOP-J80.5

VQFN016V30300.5 to 0.8

0.7

0.7

1.0 to 2.5 *1

HTSOP-J8

(VIN×0.125) to (VIN×0.7)

0.9 to (VIN×0.9)

1.0 to (VIN×0.7)

HTSOP-J8

HTSOP-J8

HTSOP-J8

VQFN016V3030

VQFN020V4040

VQFN020V4040

PGOOD

Adj.SS

Adj.SS

On

20V

20V

20V

BD95831MUV

BD9D321EFJ

BD9C301FJ / -LB

BD9134MUV

BD9859EFJ

BD9326EFJ / -LB4.75V

BD9139MUV

BD9132MUV

BD8962MUV

BD8963EFJ

Adj.SSOn 20VBD9D320EFJ

(VIN×0.125) ≥ 0.8V

0.765 to 7.0(VIN×0.07) to (VIN×0.65)

0.765 to 7.0(VIN×0.07) to (VIN×0.65)

1.0 0.8 to (VIN×0.7) VQFN016V3030PGD, Adj.SSBD9A300MUV / 301MUV-LB

1.0 / 2.0 0.8 to (VIN×0.8) VQFN016V3030PGD, Adj.SSOn BD9B300MUV / 301MUV-LB

0.8 to (VIN×0.5)(VIN×0.5) ≤ 5.5V

HTSOP-J80.55BD9E302EFJ 30V (VIN×0.143) to (VIN×0.7)(VIN×0.143) ≥ 1.0V

0.3 HTSOP-J840VBD9E303EFJ-LB 36V(VIN×0.06) to (VIN×0.8)

(VIN×0.06) ≥ 1.0V

0.7 to 5.00.2 to 1.0 VQFN032V505030V PGD, ASSBD95513MUV

2.51.0

0.57

HTSOP-J8

HTSOP-J8

40V

40VBD9E301EFJ-LB 36V

BD9E300EFJ-LB 36V (VIN×0.15) to (VIN×0.7)(VIN×0.15) ≥ 1.0V

(VIN×0.0855) to (VIN×0.7)(VIN×0.0855) ≥ 1.0V

1.0 to (VIN×0.7)0.05 to 0.75 HTSOP-J880V BD9G341AEFJ / -LB

Adj.SSOn 20VBD9D322QWZ

Adj.SSOn 20VBD9D323QWZ

0.70.765 to 7.0

(VIN×0.07) to (VIN×0.65) UMMP008Z2020

0.70.765 to 7.0

(VIN×0.07) to (VIN×0.65) UMMP008Z2020

BD9A302QWZ

BD9B304QWZOn

1.0 0.8 to (VIN×0.7) UMMP008AZ020

1.0 / 2.0 0.8 to (VIN×0.8) UMMP008AZ020

BD9B331GWZOn PGD, Adj.SS

BD9B333GWZOn PGD, Adj.SS

1.3 0.6 to (VIN×0.8) UCSP30L1

1.3 0.6 to (VIN×0.8) UCSP35L1

H3

H3



(MHz)

- PWM mode





http://www.rohm.com/web/global/products/-/product/BD9D321EFJ









http://www.rohm.com/web/global/products/-/product/BD9C301FJ

http://www.rohm.com/web/global/products/-/product/BD9C301FJ

http://www.rohm.com/web/global/products/-/product/BD9C301FJ-LB(H2)

http://www.rohm.com/web/global/products/-/product/BD9C301FJ-LB(H2)





http://www.rohm.com/web/global/products/-/product/BD9E301EFJ-LB(E2)











24V12V5V3.3V

Ou

tpu

t c

urr

en

t (A

)


2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 14 15 18 28 32 42 56 76

1.51.175 VSON008X20301.0

1.23 VSON008X20301.0

2.0

1.0

1.0

HTSOP-J81.0

1.0 to 2.51.0

3.31.0

3.3 SON008V50601.0

VQFN016V30300.5 to 0.8

VQFN020V40400.5

0.3820V 0.9 to (VIN×0.9)

1.0 to 2.5 *1

1.0 to 2.5 *1

1.0 to 2.5 *1

SOP-J8

SON008V5060

SON008V5060

SON008V5060

HTSOP-J8SON008V5060

PGD

On

On

BD95821MUV

BD9325FJ / -LB4.75V

BD9141MUV 13.2V

BD9130EFJ/NV

BD8960NV

BD89630EFJ

BD9110NV

BD9111NV

BD8961NV

BU90023NUX

BU90028NUX

(Vccmin=VOUT+1.3V)

PGD 0.8 to (VIN×0.8) VQFN016V30301.0 / 2.0On BD9B200MUV

0.8 to (VIN×0.5)(VIN×0.5) ≤ 5.5V

2.5 to 6.0

Input voltage (V)2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 14 15 18 28 32 42 56 76


1.2

0.85 to 1.2 VQFN016V30301.0

1.0 to 1.8 MSON81.0

1.0 to 1.8 MSOP81.0

3bitVIDBD9123MUV

BD9107FVM

BD8964FVM

30V Adj.SS VSON008X20300.6BD9E151NUX(VIN×0.06) to (VIN×0.7)

(VIN×0.06) ≥ 1.0V

1.0

1.2 to 12 HSON81.0

SOP-J80.57

SOP-J80.5740V

40V SOP-J81.0

BD8313HFN

BD9E102FJ 26V 30V

BD9E100FJ-LB 36V

BD9E101FJ-LB 36V

(VIN×0.15) to (VIN×0.7)(VIN×0.15) ≥ 1.0V

(VIN×0.0855) to (VIN×0.7)(VIN×0.0855) ≥ 1.0V

(VIN×0.143) to (VIN×0.7)(VIN×0.143) ≥ 1.0V

100%Duty

PGD 0.8 to (VIN×0.8) VQFN016V30301.0 / 2.0BD9B100MUV

1.0 0.8 to (VIN×0.7) VQFN016V3030PGD, Adj.SSBD9A100MUV / 101MUV-LB

BD9227F 20V 100%Duty SOP81.0 (VIN×0.252) to VIN

(VIN×0.252) ≥ 1.0V

On

BD9V101MUF-LB 70V60V16V PGD 0.8 to 5.5 VQFN24FV40401.9 to 2.3

H3



(MHz)

- PWM mode






http://www.rohm.com/web/global/products/-/product/BD9130NV






http://www.rohm.com/web/global/products/-/product/BU90023NUX

http://www.rohm.com/web/global/products/-/product/BU90028NUX

http://www.rohm.com/web/global/products/-/product/BD9325FJ


http://www.rohm.com/web/global/products/-/product/BD9325FJ-LB

http://www.rohm.com/web/global/products/-/product/BD9325FJ-LB


http://www.rohm.com/web/global/products/-/product/BD9107FVM

http://www.rohm.com/web/global/products/-/product/BD8964FVM

http://www.rohm.com/web/global/products/-/product/BD9E151NUX

http://www.rohmsemiconductor.com/web/global/products/-/product/BD8312HFN

http://www.rohmsemiconductor.com/web/global/products/-/product/BD9E102FJ

http://www.rohmsemiconductor.com/web/global/products/-/product/BD9E100FJ-LB(H2)


http://www.rohmsemiconductor.com/web/global/products/-/product/BD9A100MUV




24V12V5V3.3V

Ou

tpu

t c

urr

en

t (A

)

2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 14 15 18 28 32 42 56 76

1.25 UCSP35L14.0

3.0 UCSP35L16.0

2.5 UCSP35L16.0

1.8 UCSP35L1/UCSP30L15.4

1.2 UCSP35L14.0

3.3 UCSP35L16.0

1.0

On

On

On

On

On

On

BU90006GWZ

BU90002GWZ

BU90005GWZ

BU90004GWZ / BU90054GWZ

BU90003GWZ

BU90007GWZ

100%Duty

100%Duty

1.3 UCSP35L14.2On BU90009GWZ

1.0 UCSP35L13.6On BU90008GWZ

Input voltage (V)


On BU90104GWZ

On BU90090GWZ

1.8 UCSP35L15.4

1.83 UCSP35L15.4

Maximum output capacity 100μF

Maximum output capacity 10μF

0.5

1.0 to 2.0 VCSP50L21.0

45V SSOP61.5

1.0 to 3.3 MSON81.00.6

1.0 to 1.5 HSON81.0

1.2 MSOP81.0

1.0 to 2.5 MSON81.0

1.0 to 2.5 MSON81.0

1.24 MSOP81.00.8

3.3 MSOP81.0

3.3 MSOP81.0

3.3 MSOP81.0

100%DutyBD9161FVM / -LB

BD9122GUL

BD9120HFN

BD9103FVM

BD9106FVM / -LB

BD9102FVM

BD8966FVM

BD9104FVM

BD9109FVM / -LB

BD8967FVM

BD9G101G

0.3

(VIN×0.15) to (VIN×0.7)(VIN×0.15) ≥ 1.0V

1.2 to 12 HSON81.5BD8312HFN 100%Duty

BD70522GULOn PGD, Ultra Low IQ1.2 to 3.3 *1 VCSP50L1C1.0




(MHz)

- PWM mode




http://www.rohmsemiconductor.com/web/global/products/-/product/BU90006GWZ











http://www.rohmsemiconductor.com/web/global/products/-/product/BD9122GUL


http://www.rohmsemiconductor.com/web/global/products/-/product/BD9102FVM



http://www.rohmsemiconductor.com/web/global/products/-/product/BD9109FVM-LB


http://www.rohmsemiconductor.com/web/global/products/-/product/BD9G101G










http://www.rohmsemiconductor.com/web/global/products/-/product/BD9122GUL


Lineup of Dual Output Buck Converters (Integrated Switch FET)

Ou

tpu

t c

urr

en

t (A

)

2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 14 15 18 28 32 42 56 76

0.4

0.8

1.5

Ch2: 0.8 to 4.0Ch1: 5.0

HTSOP-J80.3 to 0.6

3.0

24V12V5V3.3V

BD95830MUV

30VBD93291EFJ 26V8VCh2: 2.0ACh1: 3.0A

Ch2: 3.0ACh1: 3.0A

0.4 to 0.8Ch2: 0.8 to 5.5Ch1: 0.8 to 5.5

VQFN032V5050

BD9150MUV4.75V

1.5 Ch2: 0.8 to 2.5Ch1: 3.3

VQFN020V4040

BD9152MUV 1.0 Ch2: 0.8 to 2.5Ch1: 3.3

VQFN020V4040

Ch2: 1.5ACh1: 1.5A

Ch2: 1.5ACh1: 1.5A

BD9151MUV2.8V Ch2: 0.8ACh1: 0.4A

1.0 Ch2: 1.2Ch1: 1.8

VQFN020V4040

BD91501MUV2.55V 1.65 Ch2: 1.8Ch1: 2.55

VQFN016V3030Ch2: 0.3ACh1: 0.4A

PGD, Voltage detector, High-side controller

100% duty


(MHz)

Input voltage (V)2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 14 15 18 28 32 42 56 76

Lineup of Buck Controllers (External Switch FET)


2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 14 15 18 28 32 42 56 76

24V12V5V3.3V


(MHz)

Input voltage (V)2.3 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 7.0 7.5 14 15 18 28 32 42 56 76

32V 0.01 to 0.3 SOP-J81.25 to VIN *1BD63536FJ 30V

36V 0.1 to 1.5 SSOP-B141.0 to VIN *1BD9845FV 35V 3.6V

36V 0.1 to 1.5 SSOP-B20Ch1: 1.0 to VIN *1

BD9848FV 35V 3.6VCh2: 1.0 to VIN *1

Adj.SS

Adj.SS

60V 0.05 to 0.5 VQFN020V4040BD9611MUV10V(0.05-0.5MHz) Adj.SS

Dual

No Enable

Co

ntr

oller

(Exte

rnal S

wit

ch

)

1.0 to (VIN×0.8)

- PWM mode


- Maximum rating PGD – Power goodH3 - H3RegTM control - Non-synchronous rectification Adj.SS – Adjustable soft start - External synchronization

20V 0.1 to 0.8 MSOP81.25 to VIN *1BD9305AFVM


4.2V


- PWM mode

- Light-load efficiency - Maximum ratingPGD – Power goodH3 - H3RegTM control

0.15 to 0.5 Ch2: 1.0. to 5.5Ch1: 1.0 to 5.5

VQFN032V5050

BD95601MUV-LB 25V 0.2 to 0.5 VQFN020V4040PGD, Adj.SS 0.75 to 2.0

BD95602MUV-LB PGD, Adj.SS

28V

30VDual

0.2 to 0.5 Ch2: 1.0. to 5.5Ch1: 1.0 to 5.5

VQFN032V5050BD9528AMUV PGD, Adj.SS30VDual

H3

H3

H3

H3

H3





http://www.rohm.com/web/global/products/-/product/BD9848FV



http://www.rohm.com/web/global/products/-/product/BD95601MUV-LB


8.8V5.4V4.4V2.7V

Lineup of Boost/Buck-boost/SEPIC and Inverting Converters and Controllers

- PWM mode

- Light-load efficiency - Maximum rating

PGD – Power good - Non-synchronous rectification

Adj.SS – Adjustable soft start

Sw

itc

h a

llo

wab

le c

urr

en

t (m

A)


Input voltage (V)1.75 1.8 2.1 2.5 2.7 3.0 3.5 4.0 4.5 5.5 6.0 11 12 14 18 28 36 42


(kHz)

10 3.3 SSOP5100

1000

BU34DV7NUX

BU33DV5G

Control

mode

Current

Inve

rsin

g

SE

PIC

Bu

ck-b

oo

st

Bo

ost

BU33DV7NUX

BD8316GWLDualCh2: Vin to +18Ch1: -9.0 to -1.0 1600Current UCSP50L1Soft Start

300

BD8158FVM

BD8152FVM1400

BD8306MUV

BD8311NUV

BD8314NUV

2000

2500

3.3 VSON010V3030600Current

3.4 VSON010V3030600Current

Soft Start, Input pass through

Soft Start, Input pass through

VIN to 14 MSOP8600/1200Current

VIN to 14 MSOP8600/1200Current

Adj.SS

1.8 to 5.2 VQFN016V3030300 to 2000Voltage Soft Start

4.0 to 12 VSON010V30301200Voltage

4.0 to 11 VSON010V30301200VoltageSoft Start

Soft Start - - -

- - -

- -

-

-

- - -

- - -

- -

- - -

BD8303MUV 1.8 to 12 VQFN016V3030200 to 1000Voltage - --

1.0 to *1 HTSSOP-B2010 to 3000Voltage -- Adj.SS

Adj.SS 2.505 to *1 SSOP-B1610 to 800Voltage --

1.222 to *1 SSOP-B1610 to 800Voltage -- Adj.SS

2.5 to *1 SOP16SSOP-A16

10 to 800Voltage -- Adj.SS

15V

20VBD9851EFV

36V

36V

36V

BA9741F / BA9741FS3.6V 35V

BA9744FV 35V

BA9743AFV3.6V 35V

Soft Start

Adj.SS

Co

ntr

oller

(Exte

rnal S

wit

ch

)

Dual

Dual

Dual

BD8317GWLDualCh2: Vin to +18 800Current UCSP50L1Soft Start - - Ch1: -9.0 to -1.0

Dual

1cell Li-Ion 2cell Li-Ion

BD9306AFVM VIN to (VIN/0.3) MSOP8100 to 800Voltage- - -20V Soft Start 4.2V

http://www.rohmsemiconductor.com/web/global/products/-/product/BU34DV7NUX

http://www.rohmsemiconductor.com/web/global/products/-/product/BU33DV5G

http://www.rohmsemiconductor.com/web/global/products/-/product/BU33DV7NUX

http://www.rohmsemiconductor.com/web/global/products/-/product/BD8316GWL



http://www.rohmsemiconductor.com/web/global/products/-/product/BD8306MUV

http://www.rohmsemiconductor.com/web/global/products/-/product/BD8311NUV

http://www.rohmsemiconductor.com/web/global/products/-/product/BD8314NUV


http://www.rohmsemiconductor.com/web/global/products/-/product/BD9851EFV

http://www.rohmsemiconductor.com/web/global/products/-/product/BA9744FV

http://www.rohmsemiconductor.com/web/global/products/-/product/BA9743AFV

http://www.rohm.com/web/global/products/-/product/BA9741F

http://www.rohm.com/web/global/products/-/product/BA9741F

http://www.rohm.com/web/global/products/-/product/BA9741FS

http://www.rohm.com/web/global/products/-/product/BA9741FS

http://www.rohmsemiconductor.com/web/global/products/-/product/BD8316GWL



3.3 V/5 V Input Selection Guide

Buck Converters (Integrated Switch FET)

Pow

er

Good

Exte

rnally

Synchro

niz

able

Adju

sta

ble

Soft

Sta

rt

Synchro

nous

Rectif

ier

Lig

ht-

Load

Effic

iency

Over-

Curr

ent

Pro

tectio

n

Therm

al

Pro

tectio

n

BD9122GUL 7 0.3 2.5～5.5 1.0～2.0 1 Current - - - Latch Latch -25～+85VCSP50L2

(2.5×1.1)

New BD70522GUL 6 0.5 2.5～5.5 1.2～3.3*1 1 On-time - - Recove

ry

Recove

ry

Output discharge

100% Duty

Output voltage setting by pin

selection

-40～+85VCSP50L1C

(1.76×1.56×0.57)

BD9161FVM

BD9161FVM-LB7 0.6 2.5～4.5 1.0～3.3 1 Current - - - Latch Latch -25～+85 MSOP8

BU9006GUZ 7 0.75 2.5～4.5 1.0～VIN 2 Current - - - -Recove

ry

Recove

ry

Incorporates in/output bias

switch, 100% Duty-35～+85

VCSP35L1

(1.6×1.6)

BD9109FVM

BD9109FVM-LB7 0.8 4.5～5.5 3.3 1 Current - - - Latch Latch -25～+85 MSOP8

BD9102FVM 7 0.8 4.0～5.5 1.24 1 Current - - - Latch Latch -25～+85 MSOP8

BD8966FVM 7 0.8 4.0～5.5 1.0～2.5 1 Current - - - - Latch Latch -25～+85 MSOP8

BD9106FVM

BD9106FVM-LB7 0.8 4.0～5.5 1.0～2.5 1 Current - - - Latch Latch -25～+85 MSOP8

BD9120HFN 7 0.8 2.7～4.5 1.0～1.5 1 Current - - - Latch Latch -25～+85 HSON8

BD8967FVM 7 0.8 4.5～5.5 3.3 1 Current - - - - Latch Latch -25～+85 MSOP8

BD9104FVM 7 0.8 4.5～5.5 3.3 1 Current - - - Latch Latch -25～+85 MSOP8

BU90008GWZ 7 1 2.3～5.5 1.0 3.6 On-time - - - Recove

ry

Recove

ry-40～+85

UCSP35L1

(1.3×0.9×0.4)

BU90003GWZ 7 1 2.3～5.5 1.2 4 On-time - - - Recove

ry

Recove

ry-40～+85

UCSP35L1

(1.3×0.9×0.4)


ry

Recove

ry-40～+85

UCSP35L1

(1.3×0.9×0.4)


ry

Recove

ry-40～+85

UCSP35L1

(1.3×0.9×0.4)


ry

Recove

ry

Maximum output capacitance

10μF-40～+85

UCSP35L1

(1.3×0.9×0.4)


ry

Recove

ry


10μF-40～+85

UCSP30L1

(1.3×0.9×0.33)


ry

Recove

ry


100μF-40～+85

UCSP35L1

(1.3×0.9×0.4)


ry

Recove

ry-40～+85

UCSP35L1

(1.3×0.9×0.4)

Part No.

Input

Voltage

Maximum

Rating

(V)

Output

Current

(A)

Input

Voltage

Range

(V)

Output Voltage

(V)

Switching

Frequency

(MHz)

Control

Mode

Features

Description

Operating

Temperature

()

Package

(mm)



3.3 V/5 V Input Selection Guide (Continued)


Pow

er

Good

Exte

rnally

Synchro

niz

able

Adju

sta

ble

Soft

Sta

rt

Synchro

nous

Rectif

ier

Lig

ht-

Load

Effic

iency

Over-

Curr

ent

Pro

tectio

n

Therm

al

Pro

tectio

n


ry

Recove

ry-40～+85

UCSP35L1

(1.3×0.9×0.4)


ry

Recove

ry-40～+85

UCSP35L1

(1.3×0.9×0.4)


ry

Recove

ry-40～+85

UCSP35L1

(1.3×0.9×0.4)

BD9A100MUV

BD9A101MUV-LB7 1 2.7～5.5 0.8～(VIN×0.7) 1 Current -

Recove

ry

Recove

ry

-40～+85

-40～+125VQFN016V3030

BD9B100MUV 7 1 2.7～5.5 0.8～(VIN×0.8) 1 / 2 On-time - DeepRecove

ry

Recove

ry-40～+85 VQFN016V3030

BD8964FVM 7 1.2 4.0～5.5 1.0～1.8 1 Current - - - - Latch Latch -25～+85 MSOP8

BD9107FVM 7 1.2 4.0～5.5 1.0～1.8 1 Current - - - Latch Latch -25～+85 MSOP8

BD9123MUV 7 1.2 2.7～5.5 0.85～1.2 1 Current - - Latch LatchOutput voltage setting by 3-bit

parallel control-40～+95 VQFN016V3030

BU90023NUX 7 1.5 2.3～5.5 1.23 1 On-time - - - Recove

ry

Recove

ry-40～+85 VSON008X2030

BU90028NUX 7 1.5 2.3～5.5 1.175 1 On-time - - - Recove

ry

Recove

ry-40～+85 VSON008X2030

BD8961NV 7 2 4.5～5.5 3.3 1 Current - - - - Latch Latch -25～+105 SON008V5060

BD9111NV 7 2 4.5～5.5 3.3 1 Current - - - Latch Latch -25～+105 SON008V5060

BD9110NV 7 2 4.5～5.5 1.0～2.5 1 Current - - - Latch Latch -25～+105 SON008V5060

BD89630EFJ 7 2 2.7～5.5 1.0～2.5 *1 1 Current - - - - Latch Latch -25～+85 HTSOP-J8

BD8960NV 7 2 2.7～5.5 1.0～2.5 *1 1 Current - - - - Latch Latch -25～+105 SON008V5060

BD9130EFJ 7 2 2.7～5.5 1.0～2.5 *1 1 Current - - - Latch Latch -25～+105 HTSOP-J8

BD9130NV 7 2 2.7～5.5 1.0～2.5 *1 1 Current - - - Latch Latch -25～+105 SON008V5060


ry

Recove

ry-40～+85 VQFN016V3030

Part No.

Input

Voltage

Maximum

Rating

(V)

Output

Current

(A)

Input

Voltage

Range

(V)

Output Voltage

(V)

Switching

Frequency

(MHz)

Control

Mode

Features

Description

Operating

Temperature

()

Package

(mm)



3.3 V/5 V Input Selection Guide (Continued)


Pow

er

Good

Exte

rnally

Synchro

niz

able

Adju

sta

ble

Soft

Sta

rt

Synchro

nous

Rectif

ier

Lig

ht-

Load

Effic

iency

Over-

Curr

ent

Pro

tectio

n

Therm

al

Pro

tectio

n

BD8962MUV 7 3 2.7～5.5 0.8～2.5 *1 1 Current - - - - Latch Latch -40～+105 VQFN020V4040

BD9132MUV 7 3 2.7～5.5 0.8～3.3 *1 1 Current - - - Latch Latch -40～+105 VQFN020V4040

BD8963EFJ 7 3 2.7～5.5 1.0～2.5 *1 1 Current - - - - Latch Latch -25～+85 HTSOP-J8

BD9134MUV 7 3 4.5～5.5 3.3 1 Current - - - Latch Latch -40～+105 VQFN020V4040

BD9139MUV 7 3 2.7～5.5 0.8～3.3 *1 1 Current - - - Latch Latch -40～+105 VQFN016V3030

BD9A300MUV

BD9A301MUV-LB7 3 2.7～5.5 0.8～(VIN×0.7) 1 Current -

Recove

ry

Recove

ry

-40～+85

-40～+125VQFN016V3030

BD9B300MUV

BD9B301MUV-LB7 3 2.7～5.5 0.8～(VIN×0.8) 1 / 2 On-time - Deep

Recove

ry

Recove

ry

-40～+85

-40～+125VQFN016V3030

New BD9A302QWZ 7 3 2.7～5.5 0.8～(VIN×0.7) 1 Current - - Recove

ry

Recove

ry-40～+85 UMMP008AZ020

New BD9B304QWZ 7 3 2.7～5.5 0.8～(VIN×0.8) 1 / 2 On-time - - DeepRecove

ry

Recove

ry-40～+85 UMMP008AZ020

New BD9B331GWZ 7 3 2.7～5.5 0.6～(VIN×0.8) 1.3 On-time LatchRecove

ry-40～+85

UCSP30L1

(1.98×1.8, h:0.33)

New BD9B333GWZ 7 3 2.7～5.5 0.6～(VIN×0.8) 1.3 On-time DeepRecove

ry

Recove

ry-40～+85

UCSP35L1

(1.98×1.8, h:0.4)

BD9137MUV 7 4 2.7～5.5 0.8～3.3 *1 1 Current - - - Recove

ry

Recove

ry-40～+105 VQFN020V4040

BD91361MUV 7 4 2.7～5.5 0.8～3.3 *1 1 Current - - - Latch LatchOutput voltage setting by 2-bit

parallel control-40～+105 VQFN020V4040

BD9A400MUV 7 4 2.7～5.5 0.8～(VIN×0.7) 1 Current - Recove

ry

Recove

ry-40～+85 VQFN016V3030


ry

Recove

ry-40～+85 VQFN016V3030

BD91364BMUU 7 5 2.9～5.5 0.8～(VIN×0.8) 1.7 On-time - LatchRecove

ry-40～+105 VQFN20U4040M


ry

Recove

ry-40～+85 VQFN016V3030

BD9A600MUV 7 6 2.7～5.5 0.8～(VIN×0.7) 1 Current - Recove

ry

Recove

ry-40～+85 VQFN016V3030


ry

Recove

ry-40～+85 VQFN016V3030

Package

(mm)

Switching

Frequency

(MHz)

Control

Mode

Features

Description

Operating

Temperature

()

Part No.

Input

Voltage

Maximum

Rating

(V)

Output

Current

(A)

Input

Voltage

Range

(V)

Output Voltage

(V)



12 V Input Selection Guide


Pow

er

Good

Exte

rnally

Synchro

niz

able

Adju

sta

ble

Soft

Sta

rt

Synchro

nous

Rectif

ier

Lig

ht-

Load

Effic

iency

Over-

Curr

ent

Pro

tectio

n

Therm

al

Pro

tectio

n

Over-

Volta

ge

Pro

tectio

n

BD8312HFN 15 0.8 3.5～14 1.2～12 1.5 Current - - - - -Recove

ry- 100% Duty -25～+85 HSON8

BD8313HFN 15 1 3.5～14 1.2～12 1 Current - - - - -Recove

ry- 100% Duty -40～+85 HSON8

BD9227F 22 1 6.0～20(VIN×0.252)～VIN

(VIN×0.252)≧ 1.01 Current - - - - -

Recove

ry

Recove

ry- 100% Duty -40～+85 SOP8

BD9141MUV 15 2 4.5～13.2 2.5～6.0 *1 0.5 Current - - - Latch Latch - -40～+105 VQFN020V4040

BD95821MUV 15.2 2 7.5～150.8～(VIN×0.5)

（VIN×0.5)≦5.50.5～0.8 H3Reg - - - Latch

Recove

ry -20～+100 VQFN016V3030

BD9325FJ

BD9325FJ-LB20 2 4.75～18 0.9～(VIN×0.9) 0.38 Current - - - -

Recove

ry

Recove

ry- -40～+85 SOP-J8

BD9C301FJ

BD9C301FJ-LB20 3 4.5～18

(VIN×0.125)～(VIN×0.7)

(VIN×0.125)≧ 0.80.5 Current - - - - Latch

Recove

ry-

-40～+85

-40～+125SOP-J8

BD95831MUV 15.2 3 7.5～150.8～(VIN×0.5)

（VIN×0.5)≦5.50.5～0.8 H3Reg - - - Latch

Recove

ry -20～+100 VQFN016V3030

BD9D320EFJ 20 3 4.5～180.765～7.0

(VIN×0.07)～(VIN×0.65)0.7 On-time - - -

Recove

ry

Recove

ry- -40～+85 HTSOP-J8

BD9D321EFJ 20 3 4.5～180.765～7.0

(VIN×0.07)～(VIN×0.65)0.7 On-time - -

Recove

ry

Recove


New BD9D322QWZ 20 3 4.5～180.765～7.0

(VIN×0.07)～(VIN×0.65)0.7 On-time - -

Recove

ry

Recove

ry- -40～+85 UMMP008Z2020

New BD9D323QWZ 20 3 4.5～180.765～7.0

(VIN×0.07)～(VIN×0.65)0.7 On-time - - -

Recove

ry

Recove

ry- -40～+85 UMMP008Z2020

BD9859EFJ 15 3 5.0～14 1.0～(VIN×0.7) 0.75 Current - - - - -Recove

ry

Recove


BD9326EFJ

BD9326EFJ-LB20 3 4.75～18 0.9～(VIN×0.9) 0.38 Current - - - -

Recove

ry

Recove


BD9C401EFJ 20 4 4.5～18(VIN×0.125)～(VIN×0.7)


Recove


BD95841MUV 15.2 4 7.5～150.8～(VIN×0.5)

（VIN×0.5)≦5.50.5～0.8 H3Reg - - - Latch

Recove

ry -20～+100 VQFN016V3030

BD9327EFJ

BD9327EFJ-LB20 4 4.75～18 0.9～(VIN×0.9) 0.38 Current - - - -

Recove

ry

Recove


BD9C501EFJ 20 5 4.5～18(VIN×0.075)～(VIN×0.7)


Recove


BD95861MUV 20 6 7.5～180.8～(VIN×0.5)

（VIN×0.5)≦5.50.35～0.8 H3Reg - - - Latch

Recove

ry -20～+100 VQFN024V4040

BD9C601EFJ 20 6 4.5～18(VIN×0.075)～(VIN×0.7)


Recove


BD95500MUV 24 6 3.0～20 0.7～5.0 0.2～1.0 H3Reg - LatchRecove

ry Output Discharge -10～+100 VQFN040V6060

Package

Switching

Frequency

(MHz)

Part No.

Input

Voltage

Maximum

Rating

(V)

Output

Current

(A)

Input

Voltage

Range

(V)

Output Voltage

(V)


Control

Mode

Features

Description

Operating

Temperature

()


24 V Input Selection Guide


Pow

er

Good

Exte

rnally

Synchro

niz

able

Adju

sta

ble

Soft

Sta

rt

Synchro

nous

Rectif

ier

Lig

ht-

Load

Effic

iency

Over-

Curr

ent

Pro

tectio

n

Therm

al

Pro

tectio

n

Over-

Volta

ge

Pro

tectio

n

BD9E100FJ-LB 40 1 7.0～36(VIN×0.15)～(VIN×0.7)

(VIN×0.15)≧ 1.01 Current - - - -

Recov

ery

Recov

ery -40～+150 SOP-J8

BD9E101FJ-LB 40 1 7.0～36(VIN×0.0855)～(VIN×0.7)

(VIN×0.0855)≧ 1.00.57 Current - - - -

Recov

ery

Recov

ery -40～+150 SOP-J8

BD9E102FJ 30 1 7.0～26(VIN×0.143)～(VIN×0.7)

(VIN×0.143)≧ 1.00.57 Current - - -

Recov

ery

Recov

ery -40～+85 SOP-J8

BD9E151NUX 30 1.2 6.0～28(VIN×0.06)～(VIN×0.7) *1

(VIN×0.06)≧ 1.00.6 Current - - - -

Recov

ery

Recov

ery -40～+85 VSON008X2030

BD9701CP-V5 36 1.5 8.0～35 1.0～(VIN-3.0) 0.1 Voltage - - - - -Recov

ery

Recov

ery- 100% Duty -40～+85 TO220CP-V5

BD9701FP 36 1.5 8.0～35 1.0～(VIN-3.0) 0.1 Voltage - - - - -Recov

ery

Recov

ery- 100% Duty -40～+85 TO252-5

BD9703CP-V5 36 1.5 8.0～35 1.0～(VIN-3.0) 0.3 Voltage - - - - -Recov

ery

Recov

ery- 100% Duty -40～+85 TO220CP-V5

BD9703FP 36 1.5 8.0～35 1.0～(VIN-3.0) 0.3 Voltage - - - - -Recov

ery

Recov

ery- 100% Duty -40～+85 TO252-5

BD9870FPS 36 1.5 8.0～35 1.0～(0.8×(VIN-IO×RON) 0.9 Voltage - - - - -Recov

ery

Recov

ery- 100% Duty -40～+85 TO252S-5

BD9873CP-V5 36 1.5 8.0～35 1.0～(0.8×(VIN-IO×RON) 0.11 Voltage - - - - -Recov

ery

Recov

ery- 100% Duty -40～+85 TO220CP-V5

BD9778HFP 36 2 7.0～35(VIN×0.06)～VIN

(VIN×0.06)≧ 1.00.05～0.5 Current - - - - -

Recov

ery

Recov

ery- 100% Duty -40～+125 HRP7

BD9E300EFJ-LB 40 2.5 7.0～36(VIN×0.15)～(VIN×0.7)

(VIN×0.15)≧ 1.01 Current - - - -

Recov

ery

Recov

ery -40～+150 HTSOP-J8

BD9E301EFJ-LB 40 2.5 7.0～36(VIN×0.0855)～(VIN×0.7)

(VIN×0.0855)≧ 1.00.57 Current - - - -

Recov

ery

Recov


BD9E302EFJ 30 3 7.0～28(VIN×0.143)～(VIN×0.7)

(VIN×0.143)≧ 1.00.55 Current - - -

Recov

ery

Recov


BD9E303EFJ-LB 40 3 7.0～36(VIN×0.06)～(VIN×0.8)

(VIN×0.06)≧ 1.00.3 Current - - - -

Recov

ery

Recov


BD9702CP-V5 36 3 8.0～35 1.0～(VIN-3.0) 0.11 Voltage - - - - -Recov

ery

Recov

ery- -40～+85 TO220CP-V5

BD9874CP-V5 36 3 8.0～35 1.0～(0.8×(VIN-IO×RON) 0.11 Voltage - - - - -Recov

ery

Recov

ery- -40～+85 TO220CP-V5

BD95513MUV 30 3 4.5～28 0.7～5.0 0.2～1.0 H3Reg - LatchRecov

ery Output Discharge -10～+100 VQFN032V5050

BD95514MUV 30 4 4.5～28 0.7～5.0 0.2～1.0 H3Reg - LatchRecov

ery Output Discharge -10～+100 VQFN032V5050

Description

Operating

Temperature

()

Package


Control

Mode

Features

Switching

Frequency

(MHz)

Part No.

Input

Voltage

Maximum

Rating

(V)

Output

Current

(A)

Input

Voltage

Range

(V)

Output Voltage

(V)



40V Input Selection Guide

Dual Output Selection Guide

Pow

er

Good

Exte

rnally

Synchro

niz

able

Adju

sta

ble

Soft

Sta

rt

Synchro

nous

Rectif

ier

Lig

ht-

Load

Effic

iency

Over-

Curr

ent

Pro

tectio

n

Therm

al

Pro

tectio

n

Over-

Volta

ge

Pro

tectio

n

BD91501MUV 2 7Io1 : 0.4

Io2 : 0.32.55～5.5

Vo1 : 2.55

Vo2 : 1.801.65 Current - - - Latch

Recov

ery- 100% Duty -30～+105 VQFN016V3030

BD9151MUV 2 7Io1 : 0.4

Io2 : 0.82.8～5.5

Vo1 : 1.8

Vo2 : 1.21 Current - - - Latch Latch -

Voltage Detector,

High-side gate controller-40～+85 VQFN020V4040

BD9150MUV 2 7Io1 : 1.5

Io2 : 1.54.75～5.5

Vo1 : 3.3

Vo2 : 0.8～2.51.5 Current - - - Latch Latch - -40～+85 VQFN020V4040

BD9152MUV 2 7Io1 : 1.5

Io2 : 1.54.5～5.5

Vo1 : 3.3

Vo2 : 0.8～2.51 Current - - - Latch Latch - -40～+85 VQFN020V4040

BD93291EFJ 2 30Io1 : 2.5

Io2 : 1.58.0～26

Vo1 : 5.0

Vo2 : 0.8～4.01.5～2.5 H3Reg - - -

Recov

ery

Recov

ery- -40～+85 HTSOP-J8

BD95830MUV 2 15.1Io1 : 3.0

Io2 : 3.07.5～15

Vo1 : 0.8～5.5

Vo2 : 0.8～5.50.4～0.8 H3Reg - - - - Latch

Recov

eryLatch -20～+100 VQFN032V5050

PackagePart No.

Number

of

Channels

Input

Voltage

Maximum

Rating

(V)

Output

Current

(A)

Input

Voltage

Range

(V)

Output Voltage

(V)

Switching

Frequency

(MHz)

Control

Mode

Features

Description

Operating

Temperature

()

Pow

er

Good

Exte

rnally

Synchro

niz

able

Adju

sta

ble

Soft

Sta

rt

Synchro

nous

Rectif

ier

Lig

ht-

Load

Effic

iency

Over-

Curr

ent

Pro

tectio

n

Therm

al

Pro

tectio

n

Over-

Volta

ge

Pro

tectio

n

BD9G101G 45 0.5 6.0～42(VIN×0.15)～(VIN×0.7)

(VIN×0.15)≧ 1.01.5 Current - - - - -

Recov

ery

Recov

ery- -40～+105 SSOP6

New BD9V101MUF-LB 70 1 16～60 0.8～5.5 1.9～2.3 Current - - -Recov

ery

Recov

ery -40～+150 VQFN24FV4040

BD9G341AEFJ

BD9G341AEFJ-LB80 3 12～76 1.0～VIN *1 0.05～0.75 Current - - - - -

Recov

ery

Recov



Part No.

Input

Voltage

Maximum

Rating

(V)

Output

Current

(A)

Input

Voltage

Range

(V)

Output Voltage

(V)

Features

Description

Operating

Temperature

()

Package

Switching

Frequency

(MHz)

Control

Mode


Boost/Buck-boost/SEPIC and Inverting Converter Selection Guide

Lineup of Boost/Buck-boost/SEPIC and Inverting Converters (Integrated Switch FET)

Isolated Flyback Converter Selection Guide

Isolaed DC/DC Power SuppliesB

oost

Buck-B

oost

SE

PIC

Invert

ing

Synchro

nous

Rectif

ier

Lig

ht-

Load

Effic

iency

Soft S

tart

Input

Pass thro

ugh

UV

LO

Over-

Curr

ent

Pro

tectio

n

Therm

al

Pro

tectio

n

BU33DV5G 1 10 1.75～4.5 3.3 100 Current - - - - - - Recov

ery SSOP5

BU33DV7NUX 1 300 1.8～5.5 3.3 600 Current - - - Recov

ery VSON010V3030

BU34DV7NUX 1 300 1.8～5.5 3.4 600 Current - - - Recov

ery VSON010V3030

New BU33UV7NUX 1 500 0.6～4.5 3.3 800 Current - - - Recov

ery VSON010X3020

BD8152FVM 1 1400 2.5～5.5 VIN～14 600 / 1200 Current - - - Adj. - Recov

ery MSOP8

BD8158FVM 1 1400 2.1～4.0 VIN～14 600 / 1200 Current - - - Adj. - Recov

ery MSOP8

BD8306MUV 1 2000 1.8～5.5 1.8～5.2 300～2000 Voltage - - - - Latch VQFN016V3030

BD8314NUV 1 2500 3.0～12 4.0～12 1200 Voltage - - - - - - Latch VSON010V3030

BD8311NUV 1 2500 3.5～11 4.0～11 1200 Voltage - - - - - - Latch VSON010V3030

BD8316GWL 2 1000 2.5～5.5Vo1 : -9.0～-1.0

Vo2 : VIN ～ 181600 Current - - - - - Latch

UCSP50L1

(1.8×1.5)

BD8317GWL 2 1000 2.5～5.5Vo1 : -9.0～-1.0

Vo2 : VIN ～ 18800 Current - - - - - Latch

UCSP50L1

(1.8×1.5)

Control

Mode

Features

Package

(mm)Part No.

Number

of

Channels

Switch

Current

Limit

(mA)

Input

Voltage

(V)

Output

Voltage

(V)

Switching

Frequency

(kHz)

Enable

Soft S

tart

Lig

ht-

Load

Effic

iency

UV

LO

Over-

Curr

ent

Pro

tectio

n

Therm

al

Pro

tectio

n

BD7F100HFN-LB

BD7F100EFJ-LB

1W at VIN 5.0V

5W at VIN 24V45 1.25 3.0 to 40 400

Adaptive

on-time

Feed

back

Feed

back-40 to +125

HSON8

HTSOP-J8

BD7F200HFN-LB

BD7F200EFJ-LB

2W at VIN 5.0V

10W at VIN 24V45 2.75 5.0 to 40 400

Adaptive

on-time

Feed

back

Feed

back-40 to +125

HSON8

HTSOP-J8

BD7J200HFN-LA

BD7J200EFJ-LA10W at VIN 48V 80 1.38 8.0 to 80 400

Adaptive

on-time

Feed

back

Feed

back-40 to +125

HSON8

HTSOP-J8

Under Development

Part No.

Output

Power

(W)

Input

Voltage

Maximum

Rating

(V)

Switch

Current

Limit

(A)

Input

Voltage

Range

(V)

Switching

Frequency

(kHz)

Control

Mode

FeaturesOperating

Junction

Temperature

Range

()

Package


Buck Controller Selection Guide

Boost/Buck-boost Controller Selection Guide

Controllers (External Switch FET)

Pow

er

Good

Exte

rnally

Synchro

niz

able

Adju

sta

ble

Soft

Sta

rt

Synchro

nous

Rectif

ier

Lig

ht-

Load

Effic

iency

Over-

Curr

ent

Pro

tectio

n

Therm

al

Pro

tectio

n

Over-

Volta

ge

Pro

tectio

n

BD9305AFVM 1 20 4.2～18 - 1.25～VIN *1 0.1～0.8 Voltage - - - - - LatchRecov

ery- -40～+85 MSOP8

BD95601MUV-LB 1 28 4.5～25 4.5～5.5 0.75～2.0 0.2～0.5 H3Reg - LatchRecov

ery

Recov

eryTracking feature -10～+85 VQFN020V4040

BD63536FJ 1 32 3.0～30 - 1.25～VIN *1 0.01～0.3 Voltage - - - - -Recov

ery

Recov

ery

Recov

ery-25～+85 SOP-J8

BD9845FV 1 36 3.6～35 - 1.0～VIN *1 0.1～1.5 Voltage - - - -Recov

ery

Recov

ery- -40～+85 SSOP-B14

BD9611MUV 1 60 10～56 - 1.0～(VIN×0.8) 0.05～0.5 Voltage - -Recov

ery

Recov

ery-

Pre Bias,

Adjustable UVLO-40～+105 VQFN020V4040

BD9528AMUV 2 30 5.5～28 - 1.0～5.5 0.2～0.5 H3Reg - LatchRecov

ery

Recov

ery

Output discharge,

3.3V LDO, 5V LDO-20～+100 VQFN032V5050

BD95602MUV

BD95602MUV-LB2 30 5.5～28 - 1.0～5.5 0.15～0.5 H3Reg - Latch

Recov

ery

Recov

ery

Output discharge,

3.3V LDO, 5V LDO-20～+85 VQFN032V5050

BD9848FV 2 36 3.6～35 - 1.0～VIN *1 0.1～1.5 Voltage - - - -Recov

ery

Recov

ery- -40～+105 SSOP-B20

Operating

Temperature

()

PackagePart No.

Number

of

Channels

Input

Voltage

Maximum

Rating

(V)

Input

Voltage

Range

(V)

Supply

Voltage

(V)

Output Voltage

(V)


Switching

Frequency

(MHz)

Control

Mode

Features

Description

Boost

Buck-B

oost

Invert

ing

Buck

Enable

Adju

sta

ble

Soft S

tart

Synchro

nous

Rectif

ier

Short

Circuit

Pro

tectio

n

Therm

al

Pro

tectio

n

BD8303MUV 1 15 2.7～14 1.8～12 200～1000 Voltage - - - - LatchRecov

ery-25～+85 VQFN016V3030

BD9306AFVM 1 20 4.2～18 VIN～(VIN/0.3) 100～800 Voltage - - - - - LatchRecov

ery-40～+85 MSOP8

BD9851EFV 2 20 4.0～18 1.0～*1 10～3000 Voltage - - - LatchRecov

ery-40～+85 HTSSOP-B20

BA9743AFV 2 36 3.6～35 2.505～*1 10～800 Voltage - - - LatchRecov

eryAdjustable Dead Time -40～+85 SSOP-B16

BA9744FV 2 36 2.5～35 1.222～*1 10～800 Voltage - - - LatchRecov

eryAdjustable Dead Time -40～+85 SSOP-B16

BA9741F 2 36 3.6～35 2.5～*1 10～800 Voltage - - - LatchRecov

eryAdjustable Dead Time -40～+85 SOP16

BA9741FS 2 36 3.6～35 2.5～*1 10～800 Voltage - - - LatchRecov

eryAdjustable Dead Time -40～+85 SSOP-A16

Description

Operating

Temperature

()

Package

(mm)


Part No.

Number

of

Channels

Input

Voltage

Maximum

Rating

(V)

Input

Voltage

(V)

Output

Voltage

(V)

Switching

Frequency

(kHz)

Control

Mode

Features

AEK60-A1-0082 ©2017 ROHM Co., Ltd. Application Engineer Div.

Notes

1) The information contained herein is subject to change without notice.

2) Before you use our Products, please contact our sales representative and verify the latest specifications.

3) Although ROHM is continuously working to improve product reliability and quality, semicon- ductors can break down

and malfunction due to various factors. Therefore, in order to prevent personal injury or fire arising from failure,

please take safety measures such as complying with the derating characteristics, implementing redundant and fire

prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no responsibility for any

damages arising out of the use of our Poducts beyond the rating specified by ROHM.

4) Examples of application circuits, circuit constants and any other information contained herein are provided only to

illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account

when designing circuits for mass production.

5) The technical information specified herein is intended only to show the typical functions of and examples of

application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise

intellectual property or other rights held by ROHM or any other parties. ROHM shall have no responsibility

whatsoever for any dispute arising out of the use of such technical information.

6) The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communication, consumer

systems, gaming/entertainment sets) as well as the applications indicated in this document.

7) The Products specified in this document are not designed to be radiation tolerant.

8) For use of our Products in applications requiring a high degree of reliability (as exemplified below), please contact

and consult with a ROHM representative : transportation equipment (i.e. cars, ships, trains), primary communication

equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and power

transmission systems.

9) Do not use our Products in applications requiring extremely high reliability, such as aerospace equipment, nuclear

power control systems, and submarine repeaters.

10) ROHM shall have no responsibility for any damages or injury arising from non-compliance with the recommended

usage conditions and specifications contained herein.

11) ROHM has used reasonable care to ensure the accuracy of the information contained in this document. However,

ROHM does not warrants that such information is error-free, and ROHM shall have no responsibility for any

damages arising from any inaccuracy or misprint of such information.

12) Please use the Products in accordance with any applicable environmental laws and regulations, such as the RoHS

Directive. For more details, including RoHS compatibility, please contact a ROHM sales office. ROHM shall have no

responsibility for any damages or losses resulting non-compliance with any applicable laws or regulations.

13) When providing our Products and technologies contained in this document to other countries, you must abide by the

procedures and provisions stipulated in all applicable export laws and regulations, including without limitation the US

Export Administration Regulations and the Foreign Exchange and Foreign Trade Act.

14) This document, in part or in whole, may not be reprinted or reproduced without prior consent of ROHM.

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