LT8570/LT8570-1 ABSOLUTE MAXIMUM RATINGS (Note 1) VIN Voltage ...–0.3V to 40V SYNC Voltage .. –0.3V to 5.5V SW Voltage ..–0.4V to 65V Operating Junction Temperature Range RT Voltage ...–0.3V to 5V LT8570E, LT8570-1E (Notes 2, 5) ..–40°C to 125°C SS Voltage ..–0.3V to 2.5V LT8570I, LT8570-1I (Notes 2, 5) ..–40°C to 125°C FBX Voltage ...5V LT8570H, LT8570-1H (Notes 2, 5) ...–40°C to 150°C FBX Current ..–1mA Storage Temperature Range ..–65°C to 150°C VC Voltage ... –0.3V to 2V Lead Temperature (Soldering, 10 sec) SHDN Voltage ..–0.3V to 40V MS8E Package Only ..300°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 GND 6 IN 3 GND 6 RT VIN 3 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/LT8570#orderinfoLEAD FREE FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LT8570EDD#PBF LT8570EDD#TRPBF LGRY 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C LT8570IDD#PBF LT8570IDD#TRPBF LGRY 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C LT8570HDD#PBF LT8570HDD#TRPBF LGRY 8-Lead (3mm × 3mm) Plastic DFN –40°C to 150°C LT8570EMS8E#PBF LT8570EMS8E#TRPBF LTGRZ 8-Lead Plastic MSOP –40°C to 125°C LT8570IMS8E#PBF LT8570IMS8E#TRPBF LTGRZ 8-Lead Plastic MSOP –40°C to 125°C LT8570HMS8E#PBF LT8570HMS8E#TRPBF LTGRZ 8-Lead Plastic MSOP –40°C to 150°C LT8570EDD-1#PBF LT8570EDD-1#TRPBF LGSB 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C LT8570IDD-1#PBF LT8570IDD-1#TRPBF LGSB 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C LT8570HDD-1#PBF LT8570HDD-1#TRPBF LGSB 8-Lead (3mm × 3mm) Plastic DFN –40°C to 150°C LT8570EMS8E-1#PBF LT8570EMS8E-1#TRPBF LTGSC 8-Lead Plastic MSOP –40°C to 125°C LT8570IMS8E-1#PBF LT8570IMS8E-1#TRPBF LTGSC 8-Lead Plastic MSOP –40°C to 125°C LT8570HMS8E-1#PBF LT8570HMS8E-1#TRPBF LTGSC 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. 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/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. 85701fa 2 For more information www.linear.com/LT8570 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