LTC3861-1 absoluTe maximum raTingspin conFiguraTion(Note 1) VCC Voltage .. –0.3V to 6V VINSNS Voltage ... –0.3V to 30V TOP VIEW RUN1, RUN2 Voltage ..–0.3V to VCC + 0.3V ISNS1P TRACK/SS1 VINSNS CONFIG SGND I AVG PGOOD1 PWMEN1 PWM1 , ISNS1N, 32 31 30 29 28 27 26 25 ISNS2P , ISNS2N ...–0.3V to (VCC + 0.1V) VCC 1 24 RUN1 All Other Pins ..–0.3V to (VCC + 0.3V) FB1 2 23 ILIM1 Operating Junction Temperature Range COMP1 3 22 ISNS1P (Notes 2, 3) .. –40°C to 125°C VSNSOUT 4 33 21 ISNS1N VSNSN 5 SGND Storage Temperature Range .. –65°C to 150°C 20 ISNS2N VSNSP 6 19 ISNS2P COMP2 7 18 ILIM2 FB2 8 17 RUN2 9 10 11 12 13 14 15 16 FREQ CLKIN PWM2 CLKOUT PHSMD PGOOD2 PWMEN2 TRACK/SS2 UH PACKAGE 32-LEAD (5mm × 5mm) PLASTIC QFN TJMAX = 125°C, θJA = 34°C/W EXPOSED PAD (PIN 33) IS SGND, MUST BE SOLDERED TO PCB orDer inFormaTion LEAD FREE FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LTC3861EUH-1#PBF LTC3861EUH-1#TRPBF 38611 32-Lead (5mm × 5mm) Plastic QFN –40°C to 125°C LTC3861IUH-1#PBF LTC3861IUH-1#TRPBF 38611 32-Lead (5mm × 5mm) Plastic QFN –40°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/ 38611fb 2 For more information www.linear.com/LTC3861-1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Related Parts