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LTC1871 Datasheet(PDF) 20 Page - Linear Technology

Part # LTC1871
Description  No RSENSE Current Mode Boost DC/DC Controller
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1871 Datasheet(HTML) 20 Page - Linear Technology

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LTC3872-1
20
38721f
For more information www.linear.com/LTC3872-1
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
LINEAR TECHNOLOGY CORPORATION 2014
LT 0214 • PRINTED IN USA
(408)432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LTC3872-1
relaTeD parTs
PART NUMBER
DESCRIPTION
COMMENTS
LTC3786
Low IQ Synchronous Step-Up Controller
4.5V(Down to 2.5V After Start-Up) ≤ VIN ≤ 38V, VOUT Up to 60V, 55µA
Quiescent Current, 3mm × 3mm QFN-16, MSOP-16E
LTC3787/LTC3787-1
Single Output, Dual Channel Multiphase Synchronous
Step-Up Controller
4.5V(Down to 2.5V After Start-Up) ≤ VIN ≤ 38V, VOUT Up to 60V, 50kHz to
900kHz Operating Frequency, 4mm × 5mm QFN-28, SSOP-28
LTC3788/LTC3788-1
Multiphase, Dual Output Synchronous Step-Up
Controller
4.5V(Down to 2.5V After Start-Up) ≤ VIN ≤ 38V, VOUT Up to 60V, 50kHz to
900kHz Fixed Operating Frequency, 5mm × 5mm QFN-32, SSOP-28
LTC3862/LTC3862-1
Multiphase, Dual Channel Single Output Current Mode
Step-Up DC/DC Controller
4V ≤ VIN ≤ 36V, 5V or 10V Gate Drive, 75kHz to 500kHz Fixed Operating
Frequency, SSOP-24, TSSOP-24, 5mm × 5mm QFN-24
LT3757A/LT3758/
LT3759
Boost, Flyback, SEPIC and Inverting Controller
1.6V/2.9V ≤ VIN ≤ 40V/100V, 100kHz to 1MHz Fixed Operating Frequency,
3mm × 3mm DFN-10 and MSOP-10E
LT3957A/LT3958/
LT3959
Boost, Flyback, SEPIC and Inverting Converters with
Onboard Power Switch
1.6V/3V/5V ≤ VIN ≤ 40V/80V, 100kHz to 1MHz Programmable Operation
Frequency, 5mm × 6mm QFN Package
LTC1871/LTC1871-1/
LTC1871-7
Wide Input Range, No RSENSE Low Quiescent Current
Flyback, Boost and SEPIC Controller
2.5V ≤ VIN ≤ 36V, 50kHz to 1MHz Fixed Operating Frequency, IQ = 250µA,
MSOP-10
LTC3859AL
Low IQ, Triple Output Buck/Buck/Boost Synchronous
DC/DC Controller
All Outputs Remain in Regulation Through Cold Crank, 4.5V(Down to
2.5V After Start-Up) ≤ VIN ≤ 38V, VOUT(BUCKS) Up to 24V, VOUT(BOOST) Up
to 60V, IQ = 28µA
3.3V Input, 5V/2A Output Boost Converter
Typical applicaTion
ITH
IPRG
GND
VFB
VIN
SW
NGATE
LTC3872-1
D1
M1
38721 TA02
RUN/SS
17.4k
VIN
11k
1%
34.8k
1%
CIN
10µF
COUT
100µF
×2
1.8nF
47pF
L1
1µH
VIN
3.3V
VOUT
5V
2A
D1: DIODES INC. B320
L1: TOKO FDV0630-1R0
M1: VISHAY Si3460DDV
1 M
1nF



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