LT8603

2

8603f

For more information www.linear.com/LT8603

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

Supply Voltages

EN/UVLO.................................................................. 42V

ISP4, ISN4 .................................................. –42V to 42V

TRKSS1-2, RUN3, FB4, PG1-4, SYNC .........................6V

FSEL4A, FSEL4B, RST.................................................6V

FB1-3, CPOR, POREN...............................................3.6V

BIAS........................................................... –0.3V to 15V

Operating Junction Temperature (Notes 2, 5)

LT8603E ............................................ –40°C to 125°C

LT8603I ............................................. –40°C to 125°C

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

(Note 1)

39

40

38 37 36 35 34 33 32 31

11

20

12 13 14 15

TOP VIEW

41

GND

UJ PACKAGE

40-LEAD (6mm

× 6mm) PLASTIC QFN

16 17 18 19

22

23

24

25

26

27

28

29

9

8

7

6

5

4

3

2

PG1

GND

SW1

BST1

BST2

SW2

SW2

GND

BIAS

PG2

RUN3

RT

FB3

FB1

FB2

FB4

EN/UVLO

TRKSS1

21

30

10

1

EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT8603EUJ#PBF

LT8603EUJ#TRPBF

LT8603UJ

40-Lead (6mm × 6mm) Plastic QFN

–40°C to 125°C

LT8603IUJ#PBF

LT8603IUJ#TRPBF

LT8603UJ

40-Lead (6mm × 6mm) Plastic QFN

–40°C to 125°C

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

shipping container.

designated sales channels with #TRMPBF suffix.

http://www.linear.com/product/LT8603#orderinfo