LTC7817

2

Rev 0

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ABSOLUTE MAXIMUM RATINGS

BOOST1, BOOST2, BOOST3....................... –0.3V to 46V

Switch Voltage (SW1, SW2, SW3) ................ –5V to 40V

RUN1, RUN2, RUN3 Voltages..................... –0.3V to 40V

(BOOST2-SW2), (BOOST3-SW3)............. –0.3V to 6V

TRACK/SS1, TRACK/SS2, SS3 Voltages...... –0.3V to 6V

ITH1, ITH2, ITH3 Voltages............................ –0.3V to 2V

VPRG3, FREQ, PGOOD1 Voltages ................ –0.3V to 6V

BG1, BG2, BG3, TG1, TG2, TG3.......................... (Note 9)

Operating Junction Temperature Range (Notes 2,8)

LTC7817E, LTC7817I.......................... –40°C to 125°C

LTC7817J, LTC7817H ......................... –40°C to 150°C

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

(Note 1)

13 14 15 16

TOP VIEW

39

PGND

UHF PACKAGE

38-LEAD (5mm × 7mm) PLASTIC QFN

EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB

17 18 19

38 37 36 35 34 33 32

24

25

26

27

28

29

30

31

8

7

6

5

4

3

2

1

FREQ

PLLIN/MODE

SS3

SGND

RUN1

RUN2

RUN3

SW1

BOOST1

BG1

SW3

TG3

BOOST3

BG3

BG2

BOOST2

23

22

21

20

9

10

11

12

PIN CONFIGURATION

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC7817EUHF#PBF

LTC7817EUHF#TRPBF

7817

38-Lead (5mm x 7mm) Plastic QFN

–40°C to 125°C

AUTOMOTIVE PRODUCTS**

LTC7817IUHF#WPBF

LTC7817IUHF#WTRPBF

7817

38-Lead (5mm x 7mm) Plastic QFN

–40°C to 125°C

LTC7817JUHF#WPBF

LTC7817JUHF#WTRPBF

7817

38-Lead (5mm x 7mm) Plastic QFN

–40°C to 150°C

LTC7817HUHF#WPBF

LTC7817HUHF#WTRPBF

7817

38-Lead (5mm x 7mm) Plastic QFN

–40°C to 150°C

Contact the factory for parts specified with wider operating temperature ranges.

**Versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These

models are designated with a #W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your

local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for

these models.