LT3597
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
Input Voltage (V IN ), EN/UVLO ...................................60V
BOOST1-3 .................................................................85V
BOOST Pin Above SW Pin........................................ 25V
LED1-3, V OUT1-3 ........................................................42V
BIAS, FAULT ..............................................................25V
V REF , RT, I SET1-3 , T SET , CTRLM ...................................3V
FB1-3, CTRL1-3, PWM1-3, SYNC ...............................6V
Operating Junction Temperature Range
(Notes 2, 3)........................................ –40°C to 125°C
Maximum Junction Temperature........................... 125°C
Storage Temperature Range................... –65°C to 150°C
BST1 2
SW1 4
DA1 6
FB1 7
EN/UVLO 9
51 50
TOP VIEW
48
53
GND
46
44
43 DA3
41 SW3
39 BST3
37 BIAS
35 FB3
34 FB2
T SET 11
V REF 12
CTRLM 13
I SET1 14
I SET2 15
I SET3 16
RT 17
33 CTRL1
32 CTRL2
31 CTRL3
30 PWM1
29 PWM2
28 PWM3
27 SYNC
18 19 20 21 22 23 24 25 26
UHG PACKAGE
VARIATION: UHG52(39)
52-LEAD (5mm × 8mm) PLASTIC QFN
T JMAX = 125°C, θ JA = 32°C/W
EXPOSED PAD (PIN 53) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT3597EUHG#PBF
LT3597IUHG#PBF
TAPE AND REEL
LT3597EUHG#TRPBF
LT3597IUHG#TRPBF
PART MARKING*
3597
3597
PACKAGE DESCRIPTION
52-Lead (5mm × 8mm) Plastic QFN
52-Lead (5mm × 8mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 125°C
–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/
3597fa
2
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