LT3957AIUHE View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT3957AIUHE Datasheet PDF : 28 Pages
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LT3957A
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN, EN/UVLO (Note 5), SW ......................................40V
INTVCC ......................................................VIN + 0.3V, 8V
SYNC ..........................................................................8V
VC, SS .........................................................................3V
RT ............................................................................1.5V
SENSE1, SGND................... Internally Connected to GND
SENSE2..................................................................±0.3V
FBX ................................................................. –6V to 6V
Operating Junction Temperature Range
(Note 2).................................................. –40°C to 125°C
Maximum Junction Temperature .......................... 125°C
Storage Temperature Range .................. –65°C to 125°C
PIN CONFIGURATION
TOP VIEW
36 35 34 33 32 31 30
NC 1
NC 2
SENSE2 3
SGND 4
SGND
37
SENSE1 6
SW 8
SW 9
NC 10
SW
38
12 13 14 15 16 17
28 INTVCC
27 VIN
25 EN/UVLO
24 SGND
23 SGND
21 SW
20 SW
UHE PACKAGE
36-LEAD (5mm w 6mm) PLASTIC QFN
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
LT3957AEUHE#PBF
LT3957AEUHE#TRPBF 3957A
36-Lead (5mm × 6mm) Plastic QFN
–40°C to 125°C
LT3957AIUHE#PBF
LT3957AIUHE#TRPBF 3957A
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.
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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