LT3753 ABSOLUTE MAXIMUM RATINGSPIN CONFIGURATION(Note 1) V TOP VIEW IN ..100V UVLO_VSEC, OVLO ..20V TEST1 1 38 PGND INTVCC, SS2..16V NC 2 37 NC FB, SYNC ..6V RT 3 36 TEST2 SS1, COMP, TEST1, RT ...3V FB 4 I COMP 5 34 NC SENSEP, ISENSEN, OC, TEST2 ..0.35V IVSEC ..–250µA SYNC 6 Operating Junction Temperature Range (Notes 2, 3) SS1 7 32 AOUT IVSEC 8 LT3753EFE ... –40°C to 125°C UNLO_V 9 30 SOUT LT3753IFE .. –40°C to 125°C SEC 39 OVLO 10 PGND LT3753HFE .. –40°C to 150°C GND T 11 28 AO VIN LT3753MPFE ... –55°C to 150°C T 12 AS Storage Temperature Range .. –65°C to 150°C T 13 26 OS INTVCC Lead Temperature (Soldering, 10 Sec) ..300°C T 14 BLNK NC 15 24 OUT NC 16 SS2 17 22 OC GND 18 21 ISENSEP PGND 19 20 ISENSEN FE PACKAGE VARIATION: FE38(31) 38-LEAD PLASTIC TSSOP JA = 25°C/W EXPOSED PAD (PIN 39) IS PGND AND GND, MUST BE SOLDERED TO PCB ORDER INFORMATIONLEAD FREE FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LT3753EFE#PBF LT3753EFE#TRPBF LT3753FE 38-Lead Plastic TSSOP –40°C to 125°C LT3753IFE#PBF LT3753IFE#TRPBF LT3753FE 38-Lead Plastic TSSOP –40°C to 125°C LT3753HFE#PBF LT3753HFE#TRPBF LT3753FE 38-Lead Plastic TSSOP –40°C to 150°C LT3753MPFE#PBF LT3753MPFE#TRPBF LT3753FE 38-Lead Plastic TSSOP –55°C to 150°C Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. Rev. B For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Operation Applications Information Package Description Revision History Typical Application Related Parts