LT8686S

2

Rev. 0

For more information www.analog.com

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VIN1, VIN2 ................................................... –0.3V to 42V

VIN3, VIN4................................................... –0.3V to 10V

EN/UVLO, EN2, EN3, EN4..........................................42V

PG1, PG2, PG3, PG4, SYNC/MODE.............................6V

BIAS........................................................... –0.3V to 14V

FB1, FB2, FB3, FB4......................................................4V

TRK/SS1, TRK/SS2, TRK/SS3, TRK/SS4....................4V

Operating Junction Temperature (Notes 2, 3)

LT8686SJ …………………………….–40°C to 150°C

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

Maximum Reflow (Package Body) Temperature ...260°C

(Note 1)

ORDER INFORMATION

28

29

30

31

32

27 26 25

9

10 11 12 13 14

15 16

TOP VIEW

LQFN PACKAGE

32-PIN (5mm × 5mm × 0.95mm)

TJMAX =150°C; θJA = 23°C/W

θJC_top = 22.6°C/W; θJC_bottom = 6.5°C/W

SW1

BST1

PG1

TRK/SS1

EN/UVLO

FB1

EN2

FB2

SW4

BST4

PG4

TRK/SS4

EN4

FB4

EN3

FB3

24

23

22

21

20

19

18

17

1

2

3

4

5

6

7

8

35

GND

33

GND

36

GND

34

GND

NOTES:

1. θ VALUES ARE DETERMINED BY SIMULATION

PER JESD-51 CONDITIONS.

2. θJA VALUE IS OBTAINED WITH ADI DEMO BOARD.

PART NUMBER

TAPE AND REEL

PAD

FINISH

PART MARKING

PACKAGE TYPE*

MSL

RATING

TEMPERATURE RANGE

(SEE NOTE 2)

DEVICE

FINISH CODE

LT8686SJV#PBF

LT8686SJV#TRPBF

Au

(RoHS)

8686S

e4

LQFN (Laminate Package with

QFN Footprint)

3

–40°C to 150°C

AUTOMOTIVE PRODUCTS**

LT8686SJV#WPBF LT8686SJV#WTRPBF

Au

(RoHS)

8686S

e4

LQFN (Laminate Package with

QFN Footprint)

3

–40°C to 150°C

• Pad or ball finish code is per IPC/JEDEC J-STD-609.

• Tape and reel specifications.

• Parts ending with PBF are RoHS and WEEE compliant.

• Recommended BGA PCB Assembly and Manufacturing

Procedures.

• BGA Package and Tray Drawings

*The LT8686S package has the same dimensions as a standard 5mm × 5mm QFN package.

**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.