LT8609S ABSOLUTE MAXIMUM RATINGSPIN CONFIGURATION(Note 1) VIN, EN/UV, PG ..42V TOP VIEW FB, TR/SS . ...4V SYNC Voltage . ..6V N/C SYNC TR/SS GND FB N/C Operating Junction Temperature Range (Note 2) 16 15 14 13 LT8609SE .. –40 to 125°C RT 1 12 PG LT8609SI ... –40 to 125°C VCC 2 11 EN/UV 17 Storage Temperature Range ..–65 to 150°C GND 3 GND 10 VIN Maximum Reflow (Package Body) GND 4 9 VIN Temperature ..260°C 5 6 7 8 N/C N/C SW SW N/C GND 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 ORDER INFORMATIONPARTFINISHPADPACKAGEMSLPART NUMBERTAPE AND REELMARKING*CODEFINISHTYPE**RATINGTEMPERATURE RANGE LT8609SEV#PBF LT8609SEV#TRPBF LGYN –40°C to 125°C e4 Au LQFN (Laminate Package (RoHS) with QFN Footprint 3 LT8609SIV#PBF LT8609SIV#TRPBF LGYN –40°C to 125°C AUTOMOTIVE PRODUCTS** LT8609SEV#WPBF LT8609SEV#WTRPBF LGYN –40°C to 125°C e4 Au LQFN (Laminate Package (RoHS) with QFN Footprint 3 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. Rev. D 2 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts