LTC3861-1 Datasheet, PDF (2/36 Pages) Linear Technology – Dual, Multiphase Step-Down Voltage Mode DC/DC Controller with Accurate Current Sharing

LTC3861-1
Absolute Maximum Ratings
(Note 1)
V_CC Voltage................................................... –0.3V to 6V
VINSNS Voltage.......................................... –0.3V to 30V
RUN Voltage................................................. –0.3V to 6V
ISNS1P_ , ISNS1N,
ISNS2P_ , ISNS2N............................ –0.3V to (V_CC + 0.1V)
All Other Pins.................................–0.3V to (V_CC + 0.3V)
Operating Junction Temperature Range
(Notes 2, 3)............................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Pin Configuration
TOP VIEW
32 31 30 29 28 27 26 25
V_CC 1
FB1 2
24 RUN1
23 I_LIM1
COMP1 3
22 ISNS1P
VSNSOUT 4
VSNSN 5
33
SGND
21 ISNS1N
20 ISNS2N
VSNSP 6
COMP2 7
FB2 8
19 ISNS2P
18 I_LIM2
17 RUN2
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 34°C/W
EXPOSED PAD (PIN 33) IS SGND, MUST BE SOLDERED TO PCB
Order Information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3861EUH-1#PBF
LTC3861EUH-1#TRPBF 38611
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 125°C
LTC3861IUH-1#PBF
LTC3861IUH-1#TRPBF 38611
32-Lead (5mm × 5mm) 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/
For more information on soldering profiles, go to: http://cds.linear.com/docs/Packaging/Linear_Technology_Surface_Mount_Products.pdf
38611f
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