LTC3774 데이터 시트보기 (PDF) - Linear Technology

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LTC3774

Dual, Multiphase Current Mode Synchronous Controller

Linear Technology 

LTC3774

ABSOLUTE MAXIMUM RATINGS

(Note 1)

VIN Voltage.................................................. –0.3V to 40V

HIZB Voltage............................................... –0.3V to 40V

RUN, PGOOD, INTVCC Voltage...................... –0.3V to 6V

SNSA1+, SNSA2+, SNSD1+,

SNSD2+, SNS1–, SNS2–......................... –0.3V to INTVCC

INTVCC Peak Output Current...................................20mA

All Other Pin Voltages............................ –0.3V to INTVCC

Operating Junction Temperature Range

(Note 2)................................................... –40°C to 125°C

Storage Temperature Range................... –65°C to 150°C

PIN CONFIGURATION

TOP VIEW

36 35 34 33 32 31 30 29

ITEMP2 1

28 ITEMP1

ITH2 2

VOSNS2– 3

VOSNS2+ 4

TK/SS2 5

HIZB2 6

PWMEN2 7

27 ITH1

26 VOSNS1–

25 VOSNS1+

24 TK/SS1

37

GND

23 HIZB1

22 PWMEN1

PWM2 8

21 PWM1

RUN2 9

20 RUN1

GND 10

19 GND

11 12 13 14 15 16 17 18

UHE PACKAGE

36-LEAD (5mm × 6mm) PLASTIC QFN

TJMAX = 125°C, θJA = 43°C/W

EXPOSED PAD (PIN 37) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3774EUHE#PBF

LTC3774EUHE#TRPBF 3774

36-Lead (5mm × 6mm) Plastic QFN

–40°C to 125°C

LTC3774IUHE#PBF

LTC3774IUHE#TRPBF 3774

36-Lead (5mm × 6mm) Plastic QFN

–40°C to 125°C

Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.

Consult LTC Marketing for information on nonstandard lead based finish parts.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/

3774f

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For more information www.linear.com/LTC3774

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