LT8580 absoluTe MaxiMuM raTings (Note 1) VIN Voltage ...–0.3V to 40V SHDN Voltage ..–0.3V to 40V SW Voltage ..–0.4V to 65V SYNC Voltage .. –0.3V to 5.5V RT Voltage ...–0.3V to 5V Operating Junction Temperature Range SS Voltage ..–0.3V to 2.5V LT8580E (Notes 2, 5) ...–40°C to 125°C FBX Voltage ...5V LT8580I (Notes 2, 5) ..–40°C to 125°C FBX Current ..–1mA LT8580H (Notes 2, 5) .. –40°C to 150°C VC Voltage ... –0.3V to 2V Storage Temperature Range ..–65°C to 150°C pin conFiguraTion TOP VIEW TOP VIEW FBX 1 8 SYNC FBX 1 8 SYNC VC 2 7 9 SS VC 2 9 7 SS V VIN 3 GND 6 RT IN 3 GND 6 RT SW 4 5 SHDN SW 4 5 SHDN MS8E PACKAGE 8-LEAD PLASTIC MSOP DD PACKAGE θ 8-LEAD (3mm JA = 35°C/W TO 40°C/W × 3mm) PLASTIC DFN EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB θJA = 43°C/W EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB orDer inForMaTion http://www.linear.com/product/LT8580#orderinfoLEAD FREE FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LT8580EDD#PBF LT8580EDD#TRPBF LGKH 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C LT8580IDD#PBF LT8580IDD#TRPBF LGKH 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C LT8580HDD#PBF LT8580HDD#TRPBF LGKH 8-Lead (3mm × 3mm) Plastic DFN –40°C to 150°C LT8580EMS8E#PBF LT8580EMS8E#TRPBF LTGKJ 8-Lead Plastic MSOP –40°C to 125°C LT8580IMS8E#PBF LT8580IMS8E#TRPBF LTGKJ 8-Lead Plastic MSOP –40°C to 125°C LT8580HMS8E#PBF LT8580HMS8E#TRPBF LTGKJ 8-Lead Plastic MSOP –40°C to 150°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on nonstandard lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ 8580fa 2 For more information www.linear.com/LT8580 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts