LT3580 ABSOLUTE MAXIMUM RATINGS(Note 1) VIN Voltage ... –0.3V to 32V Operating Junction Temperature Range SW Voltage .. –0.4V to 42V LT3580E (Notes 2, 5) ... –40°C to 125°C RT Voltage ... –0.3V to 5V LT3580I (Notes 2, 5) .. –40°C to 125°C SS and FB Voltage .. –0.3V to 2.5V LT3580H (Notes 2, 5) ..–40°C to 150°C VC Voltage ... –0.3V to 2V LT3580MP (Notes 2, 5) ... –55°C to 125°C SHDN Voltage .. –0.3V to 32V Storage Temperature Range ..–65°C to 150°C SYNC Voltage .. –0.3V to 5.5V PIN CONFIGURATION TOP VIEW TOP VIEW FB 1 8 SYNC FB 1 8 SYNC VC 2 7 9 SS VC 2 9 7 SS GND GND V V 3 IN 6 RT IN 3 6 RT SW 4 5 SHDN SW 4 5 SHDN MS8E PACKAGE 8-LEAD PLASTIC MSOP DD PACKAGE θJA = 35°C/W TO 40°C/W 8-LEAD (3mm s 3mm) PLASTIC DFN EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB TJMAX = 125°C, θJA = 43°C/W EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATIONLEAD FREE FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LT3580EDD#PBF LT3580EDD#TRPBF LCXY 8-Lead (3mm × 3mm) Plastic DFN – 40°C to 125°C LT3580IDD#PBF LT3580IDD#TRPBF LCXY 8-Lead (3mm × 3mm) Plastic DFN – 40°C to 125°C LT3580EMS8E#PBF LT3580EMS8E#TRPBF LTDCJ 8-Lead Plastic MSOP – 40°C to 125°C LT3580IMS8E#PBF LT3580IMS8E#TRPBF LTDCJ 8-Lead Plastic MSOP – 40°C to 125°C LT3580HMS8E#PBF LT3580HMS8E#TRPBF LTDCJ 8-Lead Plastic MSOP – 40°C to 150°C LT3580MPMS8E#PBF LT3580MPMS8E#TRPBF LTDCJ 8-Lead Plastic MSOP – 55°C to 125°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 non-standard 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/ 3580fg 2