External Power Switch Boost

Analog Devices manufactures a broad range of step-up (boost) controllers for virtually any application. These controllers offer wide input voltage ranges and multiple output capability, and they can be configured for flyback, forward, or SEPIC converters. Furthermore, they offer burst-mode operation for high efficiencies at light loads and easy synchronization to an external clock, while possessing comprehensive protection features.
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External Power Switch Boost

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SortOrderPart#Number of OutputsMax PhasesVin
(min)
(V)
Vin
(max)
(V)
Switch Current
(typ)
(A)
SynchronousCommentsUS Price 1000 to 4999
($ US)
1LTC7815 3- 2.5 38- Yes Low IQ, 2.25MHz, Triple Output, Buck/Buck/Boost Synchronous Controller $4.35 (LTC7815EUHF#PBF)
2LT8711 1- 4.5 42 20 Yes Micropower Synchronous Multitopology Controller with 42V Input Capability $2.30 (LT8711EUDC#PBF)
3LTC1871X 1 1 2.5 36 20 No Wide Input Range, Boost, Flyback and SEPIC Controller, 175C Max Junction Temp $125.00 (LTC1871XMS#PBF)
4LTC3897 1 4 4.5 65 30 Yes PolyPhase Synchronous Boost Controller with Input/ Output Protection $5.50 (LTC3897EFE#PBF)
5LTC3871 1 12 1.2 100 30 Yes Bidirectional PolyPhase Synchronous Buck or Boost Controller $5.40 (LTC3871ELXE#PBF)
6LTC7813 2 1 2.2 60 25 Yes Low IQ, 60V Synchronous Boost+Buck Controller $4.82 (LTC7813EUH#PBF)
7LTC7812 2- 2.5 38 25 Yes Low IQ, 38V Synchronous Boost+Buck Controller $4.00 (LTC7812EUH#PBF)
8LTC3899 3 1 4.5 60 15 Yes 60V Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller $4.95 (LTC3899EUHF#PBF)
9LT8312 1 1 10 38 25 No Boost Controller with Power Factor Correction $2.25 (LT8312EMS#PBF)
10LT8709 1 1 -80 -4.5 25 Yes Negative Input Synchronous Multi-Topology DC/DC Controller $3.65 (LT8709EFE#PBF)
11LTC3769 1 1 2.3 60 25 Yes 60V Low IQ Synchronous Boost Controller $2.75 (LTC3769EUF#PBF)
12LTC3872-1 1 1 2.75 9.8 10 No No RSENSE Current Mode Boost, LTC3872-1 No Frequency Foldback $1.80 (LTC3872EDDB-1#TRPBF)
13LTC3784 1 12, 2, 3, 4, 6 2.3 60 25 Yes 60V PolyPhase Synchronous Boost Controller $3.76 (LTC3784EGN#PBF)
14LT8710 1 1 4.5 80 25 Yes Synchronous SEPIC/Inverting/Boost Controller with Output Current Control $3.41 (LT8710EFE#PBF)
15LTC3859AL 3 2 4.5 38 25 Yes Triple Buck/Buck/Boost Synch Controller, Improved Burst Mode $4.35 (LTC3859ALEUHF#PBF)
16LTC3862-2 1 12, 2, 3, 4, 6 5.5 36 60 No Single Output Multi-Phase Boost, LTC3862-2 10V IntVcc, 4.4V UV+, 3.9V UV- $3.29 (LTC3862EGN-2#PBF)
17LT3759 1 1 1.6 42 25 No Wide Input Voltage Range Boost/SEPIC/Inverting Controller $2.35 (LT3759EMSE#PBF)
18LTC3787 1 12, 2, 3, 4, 6 4.5 38 60 Yes 2-Phase, Synchronous Boost Controller $3.53 (LTC3787EGN#PBF)
19LTC3786 1 1 2.5 38 30 Yes 60V VIN Sync Boost Controller, Low 55uA Iq $2.53 (LTC3786EMSE#PBF)
20LTC3788 2 2 2.5 38 30 Yes Dual Output, LTC3788 12 Max Phases, CLKOUT, 2 PGOOD, Adjustable Current Limit $3.53 (LTC3788EUH#PBF)
21LT3758A 1 1 5.5 100 25 No Multi-Topology Controller - Improved Load Transient Over LT3758 $2.35 (LT3758EMSE#PBF)
22LTC3788-1 2 2 2.5 38 25 Yes LTC3788-1 Offers 2-Phase, 1 PGOOD, Fixed Current Limit $3.53 (LTC3788EGN-1#PBF)
23LT3757A 1 1 2.9 40 25 No Multi-Topology Controller - Improved Load Transient Over LT3757-
24LTC3862-1 1 12, 2, 3, 4, 6 8.5 36 60 No Single Output, Multi-Phase Boost, LTC3862-1 10V IntVcc, 7.5V UV+, 7V UV- $3.29 (LTC3862EUH-1#PBF)
25LT3782A 1- 6 40 30 Yes 2-Phase Step-Up DC/DC Controller $4.41 (LT3782AEUFD#PBF)
26LTC3862 1 12, 2, 3, 4, 6 4 36 60 No Single Output, Multi-Phase Boost, LTC3862 5V IntVcc, 3.3V UV+, 2.9VUV- $3.29 (LTC3862EGN#PBF)
27LTC3805-5 1 1 4.5 75 10 No Adjustable Frequency Current Mode Flyback, LTC3805-5 4.5V Turn On Voltage $1.39 (LTC3805EDD-5#PBF)
28LTC3873-5 1 1 4 75 10 No No RSENSE Boost, LTC3873-5 5V to 75V During Start-Up $1.25 (LTC3873EDDB-5#TRPBF)
29LTC3873 1 1 8.8 75 10 No No RSENSE Boost, LTC3873 9V to 75V During Start-Up $1.25 (LTC3873EDDB#TRPBF)
30LTC3814-5 1 1 4.5 55 25 Yes 60V Current Mode Synchronous Step-Up Controller $3.50 (LTC3814EFE-5#PBF)
31LTC1871-1 1 1 2.5 36 20 No No RSENSE Current Mode Boost, LTC1871-1 Lower Burst Mode Threshold $2.65 (LTC1871EMS-1#PBF)
32ADP1621Reference Circuit Available 1- 2.9 5.5 10 No Constant-Frequency, Current-Mode Step-Up DC-to-DC Controller $1.36 (ADP1621ARMZ-R7)
33LTC3872 1 1 2.75 9.8 10 No No RSENSE Current Mode Boost, LTC3872 Has Frequency Foldback $1.80 (LTC3872ETS8#TRPBF)
34LT3844 1 1 4 60 5 No Wide Input Voltage Range, Burst Mode $3.10 (LT3844EFE#PBF)
35LTC3805 1 1 8.8 75 10 No Adjustable Frequency Current Mode Flyback, LTC3805 8.4V Turn On Voltage $1.39 (LTC3805EMSE#PBF)
36LTC3783 1 1 3 36 25 No PWM LED Driver and Boost, Flyback and SEPIC Converter $2.85 (LTC3783EDHD#PBF)
37LT3724 1 1 4 60 5 No Wide Vin, Burst Mode $3.10 (LT3724EFE#PBF)
38LTC3703-5 1 1 9.3 60 20 Yes LTC3703 60Vin, 4.5V to 15V MOSFET Gate Drive, UV+ 3.7V, UV- 3.1V $3.10 (LTC3703EGN-5#PBF)
39LTC3703 1 1 9.3 100 20 Yes LTC3703 100Vin, 9.3V to 15V MOSFET Gate Drive, UV+ 8.7V, UV- 6.2V $3.10 (LTC3703EGN#PBF)
40LTC1871-7 1 1 2.5 36 20 No LTC1871-7 Drives 6V-gate N-Channel MOSFETs $2.65 (LTC1871EMS-7#PBF)
41LTC1872B 1 1 2.5 9.8 20 No Constant Frequency Boost in SOT-23, LTC1872B Disables Burst Mode $1.85 (LTC1872BES6#TRPBF)
42LTC1871 1 1 2.5 36 20 No No RSENSE Current Mode Boost, Flyback and SEPIC Controller $2.65 (LTC1871EMS#PBF)
43LTC1872 1 1 2.5 9.8 10 No Constant Frequency Boost in SOT-23, Burst Mode $1.85 (LTC1872ES6#TRPBF)
44LTC1700 1 1 2.34 5 6 Yes No RSENSE Synchronous Step-Up DC/DC Controller $2.60 (LTC1700EMS#PBF)
45LT1619 1 1 1.9 18 20 No Low Voltage Current Mode PWM Controller $1.99 (LT1619ES8#PBF)