LTC3400 Boost Converter Overview



LTC3400 is a 5.00 V, 0.85 A switch current limit sync Boost Converter from . The input voltage from 0.85 V to 5.00 V  can be boosted into an output voltage ranging from 2.50 V to 5.00 V.

Features of the Boost Converter are fixed 1200 kHz switching frequency, a typical inductor size of 4.7 µH and it offers a peak efficiency of  up to 92 %. The minimum external component count is 5 and LTC3400 is available in 1 package option(s): TSOT23-6 .

For LTC3400 replacement search, select a main parameter tolerance value and adjust the checkboxes for feature match. The product counter within the button shows the number of available equivalents and a click on the replacement button shows all possible replacements within a parametric overview.

Search Filter
V-IN min. 0.85 V
V-IN max. 5.00 V
Current-Limit typ.? 0.85 A
V-OUT min. 2.50 V
V-OUT max. 5.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync sync
Frequency typ. 1200 kHz
Frequency adjustable fixed
Frequency selectable
Frequency adj. min.
Frequency adj. max.
extern clock sync. no
Softstart no
Softstart adjustable no
Tracking no
PG/Power OK no
Frequency sync. min.
Frequency sync. max.
Down Mode no
Quiescent current max. 500 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 4.7 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Boost
Peak Efficiency 92 %
Component count min. 5
current limit adjustable no
Nr.of package options 1

LTC3400 Datasheet

Link to the most up-to-date LTC3400 datasheet and the product page for EVM, tools and support information.


LTC3400 Price breaks and distributor sample stock

LTC3400 prices and available online distributors.

Available Distributors with stock: 0

no online Distributor with LTC3400 stock available

Available Distributors with stock: 0

no online Distributor with LTC3400 stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LTC3400. Optional, compare LTC3400 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% AS1322A AS1322A product overviewAS1322A product overview AMS TSOT23-6
0% AS1329A AS1329A product overviewAS1329A product overview AMS TSOT23-6, CSP-6
0% AS1337 AS1337 product overviewAS1337 product overview AMS TDFN-8
0% ISL9111 ISL9111 product overviewISL9111 product overview Intersil SOT23-6
0% ISL9111A ISL9111A product overviewISL9111A product overview Intersil SOT23-6
0% ISL9113 ISL9113 product overviewISL9113 product overview Intersil WLCSP-6, DFN-8
0% LTC3528 LTC3528 product overviewLTC3528 product overview Linear Technology DFN-8
0% MAX849 MAX849 product overviewMAX849 product overview Maxim Integrated SO-16
0% MP3120 MP3120 product overviewMP3120 product overview MPS TSOT23-6
0% SC120 SC120 product overviewSC120 product overview Semtech SOT23-6, MLPD-UT-6
0% AAT1217 AAT1217 product overviewAAT1217 product overview Skyworks TSOT23-6
0% L6920DB L6920DB product overviewL6920DB product overview ST MSOP-8
0% L6920DC L6920DC product overviewL6920DC product overview ST MSOP-8
0% TPS61028 TPS61028 product overviewTPS61028 product overview Texas Instruments QFN-10
0% TPS61200 TPS61200 product overviewTPS61200 product overview Texas Instruments QFN-10
0% ISL9113A ISL9113A product overviewISL9113A product overview Intersil DFN-8
0% A7533 A7533 product overviewA7533 product overview AiT SOT25-5
10% LTC3535 LTC3535 product overviewLTC3535 product overview Linear Technology DFN-12
10% LTC3537 LTC3537 product overviewLTC3537 product overview Linear Technology QFN-16
10% MAX1797 MAX1797 product overviewMAX1797 product overview Maxim Integrated uMAX-8
10% MAX848 MAX848 product overviewMAX848 product overview Maxim Integrated SO-16
10% MCP1640 MCP1640 product overviewMCP1640 product overview Microchip SOT23-6, DFN-8
25% LTC3429 LTC3429 product overviewLTC3429 product overview Linear Technology TSOT23-6
25% LTC3526 LTC3526 product overviewLTC3526 product overview Linear Technology DFN-6
25% LTC3527 LTC3527 product overviewLTC3527 product overview Linear Technology QFN-16
25% LTC3527-1 LTC3527-1 product overviewLTC3527-1 product overview Linear Technology QFN-16
25% MAX1706 MAX1706 product overviewMAX1706 product overview Maxim Integrated QSOP-16
25% TPS61070 TPS61070 product overviewTPS61070 product overview Texas Instruments SOT23-6
25% TPS61260 TPS61260 product overviewTPS61260 product overview Texas Instruments SON-6
25% MCP16251 MCP16251 product overviewMCP16251 product overview Microchip SOT23-6, TDFN
25% MCP16252 MCP16252 product overviewMCP16252 product overview Microchip SOT23-6, TDFN
50% AS1330 AS1330 product overviewAS1330 product overview AMS TDFN-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3400.

V-IN min. 0.85 V, Current-Limit typ. 0.85 A, V-OUT max. 5 V, Frequency typ. 1200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74406900022 0.2 5.5 7.5 9.00 8 x 8 x 1.5
744089420022 0.2 5.3 13.5 12.20 4.8 x 4.8 x 3.1
744383360033 0.3 5.5 8.3 14.00 3 x 3 x 2
744383560033 0.3 9.6 12.4 6.00 4.1 x 4.1 x 2.1
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