LT8609/LT8609A/LT8609B ABSOLUTE MAXIMUM RATINGS (Note 1) VIN, EN/UV, PG ..42V Operating Junction Temperature Range (Note 2) FB, TR/SS . ...4V LT8609E/LT8609AE/LT8609BE ... –40°C to 125°C SYNC Voltage . ..6V LT8609I/LT8609AI/LT8609BI .. –40°C to 125°C LT8609H/LT8609AH .. –40°C to 150°C LT8609AJ .. –40°C to 150°C Storage Temperature Range .. –65°C to 150°C PIN CONFIGURATION TOP VIEW LT8609/LT8609A LT8609B TOP VIEW TOP VIEW BST 1 16 EN/UV NC 2 15 NC BST 1 10 EN/UV BST 1 10 EN/UV SW 3 14 VIN SW 2 9 VIN SW 2 9 VIN NC 4 17 13 NC INTV 11 11 CC 3 8 PG INTVCC 3 8 PG INTV 5 CC GND 12 PG RT 4 GND 7 TR/SS RT 4 GND 7 TR/SS RT 6 11 TR/SS SYNC 5 6 FB NC 5 6 FB SYNC 7 10 FB GND 8 9 FB MSE PACKAGE MSE PACKAGE 10-LEAD PLASTIC MSOP 10-LEAD PLASTIC MSOP MS PACKAGE 16-LEAD PLASTIC MSOP JA = 40°C/W JA = 40°C/W EXPOSED PAD (PIN 11) IS GND, EXPOSED PAD (PIN 11) IS GND, JA = 40°C/W, JC(PAD) = 10°C/W MUST BE SOLDERED TO PCB MUST BE SOLDERED TO PCB EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LT8609EMSE#PBF LT8609EMSE#TRPBF LTGRW 10-Lead Plastic MSOP –40°C to 125°C LT8609IMSE#PBF LT8609IMSE#TRPBF LTGRW 10-Lead Plastic MSOP –40°C to 125°C LT8609HMSE#PBF LT8609HMSE#TRPBF LTGRW 10-Lead Plastic MSOP –40°C to 150°C LT8609AEMSE#PBF LT8609AEMSE#TRPBF LTGVR 10-Lead Plastic MSOP –40°C to 125°C LT8609AIMSE#PBF LT8609AIMSE#TRPBF LTGVR 10-Lead Plastic MSOP –40°C to 125°C LT8609BEMSE#PBF LT8609BEMSE#TRPBF LTGZY 10-Lead Plastic MSOP –40°C to 125°C LT8609BIMSE#PBF LT8609BIMSE#TRPBF LTGZY 10-Lead Plastic MSOP –40°C to 125°C LT8609AHMSE#PBF LT8609AHMSE#TRPBF LTGVR 10-Lead Plastic MSOP –40°C to 150°C LT8609AJMSE#PBF LT8609AJMSE#TRPBF LTGVR 10-Lead Plastic MSOP –40°C to 150°C LT8609AHMSE16#PBF LT8609AHMSE16#TRPBF 8609A 16-Lead Plastic MSOP –40°C to 150°C LT8609AJMSE16#PBF LT8609AJMSE16#TRPBF 8609A 16-Lead Plastic MSOP –40°C to 150°C Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. Rev. H 2 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts