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LT3957 Datasheet(PDF) 2 Page - Linear Technology |
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LT3957 Datasheet(HTML) 2 Page - Linear Technology |
2 / 24 page LT3959 2 3959f PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS VIN ............................................................................40V EN/UVLO (Note 2).....................................................40V DRIVE .......................................................................40V PGOOD......................................................................40V SW ............................................................................40V INTVCC........................................................................8V SYNC ..........................................................................8V VC, SS .........................................................................3V RT ............................................................................1.5V GND, GNDK to SGND .............................................±0.3V FBX ................................................................. –3V to 3V Operating Junction Temperature Range (Note 3) LT3959E/LT3959I .............................. –40°C to 125°C Storage Temperature Range .................. –65°C to 125°C (Note 1) 12 13 14 TOP VIEW UHEMA PACKAGE 36-LEAD (5mm × 6mm) PLASTIC QFN 15 16 17 36 35 34 33 32 31 30 21 23 24 25 27 28 8 6 4 3 2 1 NC NC NC SGND NC SW SW NC DRIVE VIN EN/UVLO SGND NC SW SW 20 9 10 SGND 37 SW 38 TJMAX =125°C, θJA = 42°C/W, θJC = 3°C/W EXPOSED PAD (PIN 37) IS SGND, MUST BE SOLDERED TO SGND PLANE EXPOSED PAD (PIN 38) IS SW, MUST BE SOLDERED TO SW PLANE ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3959EUHE#PBF LT3959EUHE#TRPBF 3959 36-Lead (5mm × 6mm) Plastic QFN –40°C to 125°C LT3959IUHE#PBF LT3959IUHE#TRPBF 3959 36-Lead (5mm × 6mm) 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/ |
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