LT3514 ABSOLUTE MAXIMUM RATINGS (Note 1) EN/UVLO ...40V PG ...25V EN/UVLO Pin Above VIN ..5V Operating Junction Temperature Range (Notes 2, 7) VIN ..40V LT3514EUFD .. –40°C to 125°C SKY ...46V LT3514IUFD ... –40°C to 125°C SW5 ..47V LT3514EFE ... –40°C to 125°C RUN/SS ...6V LT3514IFE .. –40°C to 125°C FB ...6V LT3514HFE ... –40°C to 150°C RT/SYNC ...6V Storage Temperature Range .. –65°C to 150°C PIN CONFIGURATION TOP VIEW TOP VIEW V 1 24 SKY V IN GND V IN SKY SW5 PG IN 28 27 26 25 24 23 NC 2 23 SW5 NC 1 22 NC DA3 3 22 GND NC 2 21 FB3 SW3 4 21 PG DA3 3 20 FB1 SW3 5 20 FB3 SW3 4 29 19 FB4 SW1 6 19 FB1 25 GND SW1 5 18 GND DA1 7 GND 18 FB4 DA1 6 17 RT/SYNC SW4 8 17 RT/SYNC SW4 7 16 EN/UVLO DA4 9 16 EN/UVLO DA4 8 15 RUN/SS3 NC 10 15 RUN/SS3 9 10 11 12 13 14 V 11 14 IN RUN/SS1 V IN NC GND V IN V 12 13 IN RUN/SS4 RUN/SS4 RUN/SS1 FE PACKAGE UFD PACKAGE 24-LEAD PLASTIC TSSOP 28-LEAD (4mm × 5mm) PLASTIC QFN θJA = 33°C/W θJA = 43°C/W EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISHTAPE AND REELPART MARKING*PACKAGE DESCRIPTIONTEMPERATURE RANGE LT3514EUFD#PBF LT3514EUFD#TRPBF 3514 28-Lead (4mm × 5mm) Plastic QFN –40°C to 125°C LT3514IUFD#PBF LT3514IUFD#TRPBF 3514 28-Lead (4mm × 5mm) Plastic QFN –40°C to 125°C LT3514EFE#PBF LT3514EFE#TRPBF LT3514FE 24-Lead Plastic TSSOP –40°C to 125°C LT3514IFE#PBF LT3514IFE#TRPBF LT3514FE 24-Lead Plastic TSSOP –40°C to 125°C LT3514HFE#PBF LT3514HFE#TRPBF LT3514FE 24-Lead Plastic TSSOP –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. 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/ 3514fa 2 For more information www.linear.com/LT3514 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts