LTC4012-3 absoluTe MaxiMuM raTings pin conFiguraTion (Note 1) DCIN ..–14V to 30V TOP VIEW DCIN to CLP .. –32V to 20V TE V DD TE CLP, CLN or SW to GND ... –0.3V to 30V BOOST TGA SW INT BGA 20 19 18 17 16 CLP to CLN ..±0.3V CSP, CSN or BAT to GND ... –0.3V to 28V CLN 1 15 CSP CSP to CSN ..±0.3V CLP 2 14 CSN BOOST to GND ... –0.3V to 36V INFET 3 21 13 PROG BOOST to SW...–0.3V to 7V DCIN 4 12 ITH GND 5 11 BAT SHDN or VFB to GND ..–0.3V to 7V CHRG or ICL to GND .. –0.3V to 30V 6 7 8 9 10 Operating Temperature Range ICL V FB (Note 2) ... –40°C to 125°C SHDN CHRG FBDIV UF PACKAGE Junction Temperature (Note 3) ... 125°C 20-LEAD (4mm s 4mm) PLASTIC QFN Storage Temperature Range ..–65°C to 150°C TJMAX = 125°C, JA = 37°C/W EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB orDer inForMaTion LEAD FREE FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LTC4012CUF-3#PBF LTC4012CUF-3#TRPBF 40123 20-Lead (4mm × 4mm) Plastic QFN 0°C to 85°C LTC4012IUF-3#PBF LTC4012IUF-3#TRPBF 40123 20-Lead (4mm × 4mm) 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/ 40123fb Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Operation Applications Information Package Description Revision History Typical Application Related Parts