LT8609S

2

Rev. D

For more information www.analog.com

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VIN, EN/UV, PG..........................................................42V

FB, TR/SS . .................................................................4V

SYNC Voltage .............................................................6V

Operating Junction Temperature Range (Note 2)

LT8609SE .............................................. –40 to 125°C

LT8609SI ............................................... –40 to 125°C

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

Maximum Reflow (Package Body)

Temperature......................................................260°C

(Note 1)

12

11

10

9

N/C

RT

VCC

GND

GND

N/C

N/C

PG

EN/UV

VIN

VIN

N/C

1

2

3

4

16 15 14 13

5

6

7

8

TOP VIEW

LQFN PACKAGE

16-LEAD (3mm × 3mm) LQFN

JEDEC BOARD: θJA = 50°C/W, θJC(PAD) = 14°C/W (NOTE 4)

DEMOBOARD: θJA = 31°C/W

EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB

17

GND

ORDER INFORMATION

PART NUMBER

TAPE AND REEL

PART

MARKING*

FINISH

CODE

PAD

FINISH

PACKAGE

TYPE**

MSL

RATING

TEMPERATURE RANGE

LT8609SEV#PBF

LT8609SEV#TRPBF

LGYN

e4

Au

(RoHS)

LQFN (Laminate Package

with QFN Footprint

3

–40°C to 125°C

LT8609SIV#PBF

LT8609SIV#TRPBF

LGYN

–40°C to 125°C

AUTOMOTIVE PRODUCTS**

LT8609SEV#WPBF

LT8609SEV#WTRPBF

LGYN

e4

Au

(RoHS)

LQFN (Laminate Package

with QFN Footprint

3

–40°C to 125°C

LT8609SIV#WPBF

LT8609SIV#WTRPBF

LGYN

–40°C to 125°C

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

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

• Recommended PCB Assembly and Manufacturing Procedures.

• Package and Tray Drawings

• Parts ending with PBF are RoHS and WEEE compliant.

** The LT8609S package has the same footprint as a standard 3mm × 3mm 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.