LTC3423 Boost Converter Overview



LTC3423 is a 5.50 V, 1.60 A switch current limit sync Boost Converter from . The input voltage from 0.88 V to 5.50 V  can be boosted into an output voltage ranging from 1.50 V to 5.50 V.

Features of the Boost Converter are adjustable 2000 kHz switching frequency, a typical inductor size of 2.2 µH and it offers a peak efficiency of  up to 95 %. The minimum external component count is 11 and LTC3423 is available in 1 package option(s): MSOP-10 .

For LTC3423 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. 0.88 V
V-IN max. 5.50 V
Current-Limit typ.? 1.60 A
V-OUT min. 1.50 V
V-OUT max. 5.50 V
VOUT adjustable
VOUT programmable no
sync/non-sync sync
Frequency typ. 2000 kHz
Frequency adjustable adjustable
Frequency selectable
Frequency adj. min. 100 kHz
Frequency adj. max. 3000 kHz
extern clock sync. yes
Softstart no
Softstart adjustable no
Tracking no
PG/Power OK no
Frequency sync. min. 100 kHz
Frequency sync. max. 3000 kHz
Down Mode no
Quiescent current max. 800 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ.
Inductor size typ. 2.2 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Boost
Peak Efficiency 95 %
Component count min. 11
current limit adjustable no
Nr.of package options 1

LTC3423 Datasheet

Link to the most up-to-date LTC3423 datasheet and the product page for EVM, tools and support information.


LTC3423 Price breaks and distributor sample stock

LTC3423 prices and available online distributors.

Available Distributors with stock: 0

no online Distributor with LTC3423 stock available

Available Distributors with stock: 0

no online Distributor with LTC3423 stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LTC3423. Optional, compare LTC3423 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LTC3401 LTC3401 product overviewLTC3401 product overview Linear Technology MSOP-10
10% LTC3422 LTC3422 product overviewLTC3422 product overview Linear Technology DFN-10

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3423.

V-IN min. 0.88 V, Current-Limit typ. 1.6 A, V-OUT max. 5.5 V, Frequency typ. 2000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744302007 0.1 30.0 60.0 0.24 6.95 x 6.8 x 4.7
744302010 0.1 30.0 45.0 0.24 6.95 x 6.8 x 4.7
744304010 0.1 26.0 52.0 0.17 11.5 x 11.8 x 4
744373240010 0.1 12.0 30.0 3.20 4.45 x 4.06 x 2
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