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 θJA = 52.5°C/W EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATIONPARTPACKAGEMSLPART NUMBERMARKING*FINISH CODEPAD FINISHTYPE**RATINGTEMPERATURE RANGE LT8609SEV#PBF LGYN –40°C to 125°C e4 Au (RoHS) LQFN (Laminate Package with QFN Footprint 3 LT8609SIV#PBF LGYN –40°C to 125°C Consult Marketing 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. Rev. A 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