dem maal d2455a- ltm4650ey-1 high efficiency, polyphase ... · 4× ltm4650ey-1, 200a demonstration...

1dc2455acf

DEMO MANUAL DC2455A-C

Description

LTM4650EY-1 High Efficiency, PolyPhase 200A Step-Down

Power µModule® Regulator4× LTM4650EY-1, 200A

Demonstration Circuit 2455A-C features PolyPhase® design using the LTM®4650EY-1 (B-grade), the high efficiency, high density, dual 25A, switch mode step-down power module regulator. The input voltage is from 4.5V to 15V. The output voltage is jumper selectable from 0.9V to 1.8V. DC2455A-C can deliver nominal 200A output current. As explained in the data sheet, output current de-rating is necessary for certain VIN, VOUT, and thermal conditions. The LTM4650-1 on DC2455A-C always operate in continuous conduction mode. The switching frequency can be pro-grammed through a resistor or can be synchronized to an external clock signal. The board allows the user to program how its output voltage ramps up and down through the L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule, PolyPhase and TimerBlox are

registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.

TRACK pin. The output voltage is tightly regulated between “VO

+” and “VO–” through remote output voltage sensing

which improves output voltage regulation at heavy loads. These features and the availability of the LTM4650EY-1 in a compact 16mm × 16mm × 5.01mm BGA package make it ideal for use in many high-density point-of-load regulation applications. The LTM4650-1 data sheet must be read in conjunction with this demo manual for working on or modifying the demo circuit DC2455A-C.

Design files for this circuit board are available at http://www.linear.com/demo/DC2455A-C

Figure 1. 4× LTM4650-1, 200A PolyPhase LTM4650-1/DC2455A-C Demo Board

http://www.linear.com/LTM4650-1

http://www.linear.com/demo/DC2455A-C

2dc2455acf


Quick start proceDureDemonstration circuit DC2455A-C is easy to set up to evaluate the performance of PolyPhase operation of the LTM4650EY-1. Due to the high input/output current, user should select the proper input supply/load/cable which can sustain the full load operation. It’s recommended to pull load current from J2 and J4. The load current pulled from J5 and J6 shouldn’t exceed 25A. Please refer to Figure 2 for proper measurement setup and follow the procedure below:

1. Place jumpers in the following positions for a typical 1.0VOUT application:

JP1 JP2 JP4~JP8

CLK RUN VOUT SELECT

INT OFF ON JP5 / 1.0V

2. With power off, connect the input power supply, load and meters as shown in Figure 2. Preset the load to 0A and VIN supply to 12V.

3. Turn on the power supply at the input. Place JP2 to ON position. The output voltage between “VO

+” and “VO–”

should be 1.0V ± 1.5% (0.985V~1.015V).

4. Once the proper output voltage is established, adjust the load within the operating range and observe the output

voltage regulation, output voltage ripple, efficiency and other parameters. Output voltage ripple should be measured at J11 with BNC cables. 50Ω termination should be set on the oscilloscope or BNC cables.

5. (Optional) For optional load transient test, apply an adjustable pulse signal between “IOSTEP CLK” and “GND” test point. Pulse amplitude (3V~3.5V) sets the load step current amplitude. The output transient current can be monitored at the BNC connector J12 (5mV/A). The pulse signal should be very small duty cycle (<10%) to limit the thermal stress on the transient load circuit.

6. (Optional) LTM4650-1 can be synchronized to an external clock signal. Place the JP1 jumper on EXT and apply a clock signal (0V~5V, square wave) on the “EXT_CLK” test point.

7. (Optional) The outputs of LTM4650-1 can track another supply. The output voltage tracks the voltage on TRACK when a valid signal is applied on the test point.

8. (Optional) DC2455A-C can be configured to a dual outputs configuration with VO at 175A load current and VO2 at 25A load current. Stuff 0Ω resistor on R61 and 0.1µF on C14. Remove R22, R23, R24, R26, R27, R28, R32, R33, R35. Output voltage VO2 is set by R37 based on the equation VO2 = 0.6V(1+60.4k /R37).

performance summary Specifications are at TA = 25°C

PARAMETER CONDITIONS / NOTES VALUE

Input Voltage Range 4.5V ~ 15V

Output Voltage VOUT VIN = 4.5V to 15V, IOUT = 0A to 200A, JP5: 1.0V 1.0V ± 1.5% (0.985V ~ 1.015V)

Maximum Continuous Output Current De-rating is necessary for certain VIN, VOUT and thermal conditions, see data sheet for detail.

200A

Default Operating Frequency 500kHz

Resistor Programmable Frequency Range 400kHz – 780kHz

External Clock Sync. Frequency Range 400kHz – 780kHz

Efficiency VIN = 12V, VOUT = 1.0V, IOUT = 200A, fSW = 500kHz 86.1% See Figure 3

Load Transient VIN = 12V, VOUT = 1.0V, ISTEP = 100A to 150A < 53mV, See Figure 4

3dc2455acf


Quick start proceDure

+ –

+ –

1mΩ

VOUT0

LOAD 0A~200A

+ –

VIN4.5V TO 16V

+ +– –

Figure 2. Test Setup of DC2455A-C

Figure 3. Measured Efficiency VIN = 12V, fSW = 500kHz

LOAD CURRENT (A)0

EFFI

CIEN

CY (%

)

100

95

65

90

85

80

60

75

70

4020 60

DC2455AC F03

14080 120100 200180160

VO = 1VVO = 1.5V

4dc2455acf


Quick start proceDure

X-AXIS (?)DC2455AC F04

1V VO (20MHz BW)20mV/DIV

AC-COUPLED

100A TO 150ALOAD

X-AXIS (?)DC2455AC F05

VOUT (20MHz BW)5mV/DIV

Figure 4. Load Transient 100A to 150A (VIN = 12V, VOUT1 = 1V, fSW = 500kHz)

Figure 5. Output Voltage Ripple (VIN = 12V, VOUT1 = 1V, IOUT = 200A, fSW = 500kHz)

Figure 6. Thermal Performance at VIN = 12V, VOUT = 1V, IOUT = 200A, TA = 23.8°C, 400LFM Air Flow

5dc2455acf


parts ListITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 1 CIN1 CAP, 150µF 25% 25V ALUM SUN ELECT., 25HVH150M

2 2 CIN2, CIN11 CAP, 1206 1µF 10% 25V X5R TAIYO YUDEN, TMK316BJ105KD-T

3 8 CIN3-CIN10 CAP, 1210 22µF 10% 25V X5R AVX, 12103D226KAT2A

4 8 CIN12-CIN19 CAP, 1210 22µF 10% 25V X5R AVX, 12103D226KAT2A

5 16 CO1, CO2, CO5, CO6, CO7, CO8, CO11, CO13, CO15, CO16, CO24, CO55, CO56, CO57, CO58, CO59

CAP, 1206 220µF 20% 4V X5R MURATA, GRM31CR60G227ME11L

6 16 CO20, CO21, CO22, CO26, CO27, CO28, CO30, CO32, CO33, CO34, CO35, CO36, CO48, CO50, CO52, CO54

CAP, 1206 220µF 20% 4V X5R MURATA, GRM31CR60G227ME11L

7 1 C1 CAP, 0603 330pF 10% 50V X7R AVX, 06035C331KAT2A-CT

8 4 C4, C10, C18, C22 CAP, 0603 4.7µF 20% 10V X5R TAIYO YUDEN, LMK107BJ475MA-T

9 7 C6, C11, C19, C23, COUT26, C42, C43 CAP, 0603 1µF 10% 10V X7R TAIYO YUDEN, LMK107BJ105KA-T

10 1 C7 CAP, 0603 0.1µF 10% 25V X7R AVX, 06033C104KAT2A

11 1 C31 CAP, 0603 15nF 10% 50V X7R AVX, 06035C153KAZ2A

12 1 C39 CAP, 0603 100nF 10% 100V X7R MURATA, GRM188R72A104KA35D

13 1 C40 CAP, 0603 150pF 5% 50V C0G AVX, 06035A151JAT2A

14 2 C41, C48 CAP, 1210 100µF 10V X5R MURATA, GRM32ER61A107ME20L

15 8 C41, C44, C45, C48, C52, C53, C54, C55 CAP, 1210 100µF 10% 6.3V X5R MURATA, GRM32ER60J107ME20L

16 1 C46 CAP, 1210 10µF 16V X5R MURATA, GRM32DR61C106KA01L

17 1 C47 CAP, 0603 220pF 10% 50V X7R AVX, 06035C221KAT2A

18 1 C49 CAP, 0603 47nF 10% 50V X7R AVX, 06035C473KAZ2A

19 1 L1 IND, 68µH, CDRH105 SUMIDA CDRH105RNP-680N

20 2 Q1, Q2 MOSFET, N-CH D-S 40V TO252 VISHAY, SUD50N04-8M8P-4GE3

21 4 R1, R3, R25, R29 RES, 0603 10Ω 5% 1/10W VISHAY, CRCW060310R0JNEA

22 9 R2, R9, R14, R21, R31, R39, R43, R47, R51 RES, 0603 121kΩ 1% 1/10W VISHAY, CRCW0603121KFKEA

23 4 R4, R36, R41, R98 RES, 0603 10kΩ 5% 1/10W VISHAY, CRCW060310K0JNEA

24 1 R11 RES, 0603 1.74kΩ 1% 1/10W VISHAY, CRCW06031K74FKEA





29 1 R89 RES, 0603 2Ω 1% 1/10W VISHAY CRCW06032R00FNEA

30 1 R92 RES, 0603 3.3Ω 1% 1/10W VISHAY, CRCW06033R3FKEA

31 1 R93 RES, 0603 154kΩ 1% 1/10W VISHAY, CRCW0603154KFKEA

32 1 R94 RES, 0603 1MΩ 5% 1/10W VISHAY CRCW06031M00JNEA

33 3 R95, R96, R107 RES, 0603 20kΩ 5% 1/10W VISHAY, CRCW060320K0JNTA

34 1 R97 RES, 0603 681kΩ 1% 1/10W VISHAY, CRCW0603681KFKEA

35 1 R99 RES, 0603 301Ω 1% 1/10W VISHAY, CRCW0603301RFKEA

36 1 R100 RES, 0603 82.5Ω 1% 1/10W VISHAY, CRCW060382R5FKEA

37 2 R101, R102 RES, 2512 0.010Ω 1% 1W VISHAY, WSL2512R01000FEA

38 1 R103 RES POT, 5k BOURNS 3386P-1-502-LF

6dc2455acf


parts ListITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

39 1 R104 RES, 0603 1kΩ 1% 1/10W VISHAY, CRCW06031K00FKEA

40 1 R105 RES, 0603 105kΩ 1% 1/10W VISHAY CRCW0603105KFKEA

41 1 R106 RES, 0603 80.6kΩ 1% 1/10W VISHAY CRCW060380K6FKEA

42 4 U1, U2, U3, U4 IC, VOLTAGE REGULATOR, BGA LINEAR TECH., LTM4650EY-1#PBF

43 1 U5 IC, TimerBlox® LINEAR TECH., LTC6992IS6-1B#PBF

44 1 U6 IC, OP-AMP, SINGLE, BIPOLAR LINEAR TECH., LT1803IS5#PBF

45 1 U7 IC, LTC3630EMSE LINEAR TECH., LTC3630EMSE#PBF

Additional Demo Board Circuit Components

1 0 CO3, CO9, CO14, CO17, CO18, CO38, CO40, CO42, CO45, CO46

CAP, 1210 OPTION OPTION

2 0 CO4, CO10, CO12, CO19, CO23, CO25, CO29, CO31, CO37, CO39, CO41, CO43, CO44, CO47, CO49, CO51, CO53


3 0 C2, C3, C5, C8, C9, C12, C17, C20, C21, C29, C30, C32


4 0 R5, R7, R8, R10, R30, R37, R38, R42, R44, R48, R49, R50, R52, R53, R55, R61, R64, R87

RES, 0603 OPTION OPTION

5 13 R6, R19, R20, R27, R28, R32, R33, R35, R40, R45, R62, R63, R91

RES, 0603 0 OHMS JUMPER VISHAY, CRCW06030000Z0EA

6 0 R13 RES, 0603 OPTION OPTION

7 1 R34 RES, 0603 0Ω JUMPER VISHAY, CRCW06030000Z0EA

8 4 R22, R23, R24, R26 RES, 2010 0Ω JUMPER VISHAY, CRCW20100000ZEA9

9 1 R60 RES, 1206 0Ω JUMPER VISHAY, CRCW12060000ZOEA

Hardware: For Demo Board Only

1 11 E1-E4, E6-E9, E12, E13, E22 TESTPOINT, TURRET, .063" MILL MAX, 2308-2-00-80-00-00-07-0

2 0 E5, E10, E11, E14, E15, E16, E17, E18, E23, E24, E25, E26, E27, E28, E29, E30

TEST PAD SMD

3 2 E33, E34 TESTPOINT, TURRET, .094" MILL MAX, 2501-2-00-80-00-00-07-0

4 4 JP1, JP2, JP9, JP10 HEADER, 3 PIN 2mm SINGLE ROW WURTH ELEKTRONIK, 620-003-111-21

5 5 JP4, JP5, JP6, JP7, JP8 HEADER, 2 PIN 2mm SINGLE ROW WURTH ELEKTRONIK, 620-002-111-21

6 6 J1, J2, J3, J4, J13, J14 STUD, TEST PIN PEM, KFH-032-10

7 12 J1, J2, J3, J4, J13, J14 (×2) NUT, BRASS PL # 10-32 ANY, 10-32M/S BR PL

8 6 J1, J2, J3, J4, J13, J14 LUG RING, #10 KEYSTONE, 8205

9 6 J1, J2, J3, J4, J13, J14 WASHER, TIN PLATED BRASS ANY, #10EXT BZ TN

10 2 J11, J12 CON, BNC, 5 PINS CONNEX, 112404

11 5 XJP1, XJP2, XJP4, XJP9, XJP10 SHUNT 2mm WURTH ELEKTRONIK, 608-002-134-21

12 4 MTGS AT 4 CORNERS STAND-OFF, NYLON KEYSTONE, 8833

7dc2455acf


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VO

UT2

A11

VO

UT2

A12

VO

UT2

B8V

OU

T2B9

VO

UT2

B10

VO

UT2

B11

VO

UT2

B12

VO

UT2

C9V

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0V

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T2C1

1V

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2

VFB

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VIN

M2

VIN

M3

VIN

M4

VIN

M5

VIN

M6

VIN

M7

VIN

M8

VIN

M9

VIN

M10

VIN

M11

VIN

L2V

INL3

VIN

L4V

INL5

VIN

L6V

INL7

VIN

L8V

INL9

VIN

L10

VIN

L11

VINK2 VINK3 VINK4 VINK9 VINK10 VINK11

VINJ2 VINJ3 VINJ4 VINJ9 VINJ10 VINJ11

GN

DA6

GN

DA7

GN

DB6

GN

DB7

GN

DD1

GN

DD2

GN

DD3

GN

DD4

GN

DD9

GN

DD1

0G

ND

D11

GN

DD1

2G

ND

E1

GND E2GND E3GND E4GND E10GND E11GND E12GND F1GND F2GND F3GND F10GND F11GND F12GND G1GND G3GND G10GND G12GND H1GND H2GND H3GND H4GND H5GND H6GND H7GND H9GND H10GND H11GND H12

GND M12GND M1GND L12

GND J1GND J5GND J8GND J12GND K1GND K5GND K6GND K7GND K8GND K12GND L1

SGND C7SGND D6SGND F6SGND F7SGND G6SGND G7

FSE

TC6

PH

AS

MD

G4

DIF

FPE8

DIF

FNE9

CLKOUTG5

MODE-PLLINF4

TEMPJ6

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DIF

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R13 *

J4G

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JP5

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DEMO CIRCU

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O2-

INTV

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UT

VO

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SIZE

DATE

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SHEE

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APP

RO

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PCB

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ENG.

TECH

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Fax:

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1M

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SIZE

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r.com

1M

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y, M

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016

25

HIG

H E

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CY, P

OLY

PHAS

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N/A

STEP

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M

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C11

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C13

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CIN

922

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D

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0 O

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R27

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C8

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C32

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0 O

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R21

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CO

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CO

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CO

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1210

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LTM

4650

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-1VOUT1A1VOUT1A2VOUT1A3VOUT1A4VOUT1A5VOUT1B1VOUT1B2VOUT1B3VOUT1B4VOUT1B5VOUT1C1VOUT1C2VOUT1C3VOUT1C4

VFB

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SW

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CO

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1E6

RU

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TRA

CK

1E5

VO

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VO

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T2A9

VO

UT2

A10

VO

UT2

A11

VO

UT2

A12

VO

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B10

VO

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CO

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RU

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TRA

CK

2D8

VO

UTS

2C8

VIN

M2

VIN

M3

VIN

M4

VIN

M5

VIN

M6

VIN

M7

VIN

M8

VIN

M9

VIN

M10

VIN

M11

VIN

L2V

INL3

VIN

L4V

INL5

VIN

L6V

INL7

VIN

L8V

INL9

VIN

L10

VIN

L11



GN

DA6

GN

DA7

GN

DB6

GN

DB7

GN

DD1

GN

DD2

GN

DD3

GN

DD4

GN

DD9

GN

DD1

0G

ND

D11

GN

DD1

2G

ND

E1





FSE

TC6

PH

AS

MD

G4

DIF

FPE8

DIF

FNE9

CLKOUTG5

MODE-PLLINF4

TEMPJ6

INTV

CC

H8

EX

TVC

CJ7

DIF

FOU

TF8

R19

0 O

hm

R34 *

R64

OP

T

CIN

1022

uF25

V12

10

R32

0 O

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SW

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R38

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CO

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PT

1210

CIN

822

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10

CO

1622

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1210

4V

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10K

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CO

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CIN

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10

CO

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E13

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E12

VO

2+

C12

OP

T

R30

OP

T

E14

SW

2-2

CO

17O

PT

1210

9dc2455acf



4 4

3 3

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DD

CC

BB

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DEMO CIRCU

IT 245

5A‐(A

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LTM46

50EY‐1

LT JL

COM

P

RUN

COM

P

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UT_U

2

CLKO

UT_U

3

PGO

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RUN

VFB

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PGO

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TRAC

K

VFB

CO

MP

CLK

OU

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CLK

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T_U

3

RU

N

VFB

PG

OO

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TRA

CK

VO

UT

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CC

_U3

VO

UT

VIN

EX

TVC

C

INTV

CC

_U3

INTV

CC

_U3

INTV

CC

_U3

SIZE

DATE

:

IC N

O.RE

V.

SHEE

TOF

TITL

E:

APP

RO

VA

LS

PCB

DES.

APP

ENG.

TECH

NOLO

GY

Fax:

(40

8)43

4-05

07

Milp

itas,

CA

9503

5Ph

one:

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8)43

2-19

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www.

linea

r.com

1M

onda

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3, 2

016

35

HIG

H E

FFIC

IEN

CY, P

OLY

PHAS

E, D

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C

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SIZE

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SHEE

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APP

RO

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LS

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TECH

NOLO

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Fax:

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4-05

07

Milp

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CA

9503

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McC

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www.

linea

r.com

1M

onda

y, M

ay 2

3, 2

016

35

HIG

H E

FFIC

IEN

CY, P

OLY

PHAS

E, D

C/D

C

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STEP

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WN

M

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SIZE

DATE

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IC N

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SHEE

TOF

TITL

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APP

RO

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LS

PCB

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APP

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TECH

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linea

r.com

1M

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M7

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M8

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M10

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M11

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L2V

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L4V

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L6V

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L8V

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GN

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DD1

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GN

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GN

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GN

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FSE

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PH

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CLKOUTG5

MODE-PLLINF4

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10dc2455acf



4 4

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2 2

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,B,C)

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3, 2

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TECH

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Fax:

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4-05

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linea

r.com

1M

onda

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ay 2

3, 2

016

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HIG

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PHAS

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APP

RO

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LS

PCB

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APP

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TECH

NOLO

GY

Fax:

(40

8)43

4-05

07

Milp

itas,

CA

9503

5Ph

one:

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8)43

2-19

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McC

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www.

linea

r.com

1M

onda

y, M

ay 2

3, 2

016

45

HIG

H E

FFIC

IEN

CY, P

OLY

PHAS

E, D

C/D

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N/A

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MO

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36 * 12104V

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54 * 12104V

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1E5

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A10

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UT2

A11

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UT2

A12

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B10

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2D8

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M2

VIN

M3

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M4

VIN

M5

VIN

M6

VIN

M7

VIN

M8

VIN

M9

VIN

M10

VIN

M11

VIN

L2V

INL3

VIN

L4V

INL5

VIN

L6V

INL7

VIN

L8V

INL9

VIN

L10

VIN

L11



GN

DA6

GN

DA7

GN

DB6

GN

DB7

GN

DD1

GN

DD2

GN

DD3

GN

DD4

GN

DD9

GN

DD1

0G

ND

D11

GN

DD1

2G

ND

E1





FSE

TC6

PH

AS

MD

G4

DIF

FPE8

DIF

FNE9

CLKOUTG5

MODE-PLLINF4

TEMPJ6

INTV

CC

H8

EX

TVC

CJ7

DIF

FOU

TF8

+C

O51

OP

T73

43

C20

OP

T

+C

O31

OP

T73

43

11dc2455acf


Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.


4 4

3 3

2 2

1 1

DD

CC

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DATE

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SHEE

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APP

RO

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LS

PCB

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APP

ENG.

TECH

NOLO

GY

Fax:

(40

8)43

4-05

07

Milp

itas,

CA

9503

5Ph

one:

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8)43

2-19

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McC

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1M

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ay 2

3, 2

016

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HIG

H E

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IEN

CY, P

OLY

PHAS

E, D

C/D

C

N/A

STEP

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WN

M

OD

ULE

REG

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TOR

SIZE

DATE

:

IC N

O.RE

V.

SHEE

TOF

TITL

E:

APP

RO

VA

LS

PCB

DES.

APP

ENG.

TECH

NOLO

GY

Fax:

(40

8)43

4-05

07

Milp

itas,

CA

9503

5Ph

one:

(40

8)43

2-19

00

1630

McC

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vd.

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ww

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1M

onda

y, M

ay 2

3, 2

016

55

HIG

H E

FFIC

IEN

CY, P

OLY

PHAS

E, D

C/D

C

N/A

STEP

-DO

WN

M

OD

ULE

REG

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TOR

SIZE

DATE

:

IC N

O.RE

V.

SHEE

TOF

TITL

E:

APP

RO

VA

LS

PCB

DES.

APP

ENG.

TECH

NOLO

GY

Fax:

(40

8)43

4-05

07

Milp

itas,

CA

9503

5Ph

one:

(40

8)43

2-19

00

1630

McC

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vd.

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CO

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NT

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R C

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Linear Technology Corporation1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 2016

LT 0616 • PRINTED IN USA

DEMONSTRATION BOARD IMPORTANT NOTICE

Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions:

This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.

If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or agency certified (FCC, UL, CE, etc.).

No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.

LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.

Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and observe good laboratory practice standards. Common sense is encouraged.

This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC application engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

Copyright © 2004, Linear Technology Corporation

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