LT1377 Boost Converter Overview



LT1377 is a 35.00 V, 2.00 A switch current limit non-sync Boost Converter from . The input voltage from 2.70 V to 30.00 V  can be boosted into an output voltage ranging from 3.00 V to 35.00 V.

Features of the Boost Converter are fixed 1000 kHz switching frequency, a typical inductor size of 4.7 µH and it offers a peak efficiency of  up to 88 %. The minimum external component count is 9 and LT1377 is available in 2 package option(s): SO-8 PDIP-8 .

For LT1377 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. 2.70 V
V-IN max. 30.00 V
Current-Limit typ.? 2.00 A
V-OUT min. 3.00 V
V-OUT max. 35.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync non-sync
Frequency typ. 1000 kHz
Frequency adjustable fixed
Frequency selectable
Frequency adj. min.
Frequency adj. max.
extern clock sync. yes
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
Frequency sync. min. 1200 kHz
Frequency sync. max. 1600 kHz
Down Mode no
Quiescent current max. 5500 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
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 88 %
Component count min. 9
current limit adjustable no
Nr.of package options 2

LT1377 Datasheet

Link to the most up-to-date LT1377 datasheet and the product page for EVM, tools and support information.


LT1377 Price breaks and distributor sample stock

LT1377 prices and available online distributors.

Available Distributors with stock: 0

no online Distributor with LT1377 stock available

Available Distributors with stock: 0

no online Distributor with LT1377 stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LT1377. Optional, compare LT1377 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT1373 LT1373 product overviewLT1373 product overview Linear Technology SO-8, PDIP-8
0% LT1373HV LT1373HV product overviewLT1373HV product overview Linear Technology SO-8, PDIP-8
10% LT1372 LT1372 product overviewLT1372 product overview Linear Technology SO-8, PDIP-8
10% LT1372HV LT1372HV product overviewLT1372HV product overview Linear Technology SO-8, PDIP-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LT1377.

V-IN min. 2.7 V, Current-Limit typ. 2 A, V-OUT max. 35 V, Frequency typ. 1000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744303022 0.2 31.0 32.0 0.33 10 x 6.8 x 5
744305022 0.2 28.0 42.0 0.16 13.5 x 13.3 x 5.2
744307022 0.2 29.0 29.0 0.33 7.4 x 7.2 x 7.2
744308020 0.2 27.0 48.0 0.37 10.1 x 7 x 7
744308025 0.3 27.0 44.0 0.37 10.1 x 7 x 7
7443081022 0.2 38.0 45.0 0.29 9.4 x 6.2 x 8.1
7443081030 0.3 38.0 32.0 0.29 9.4 x 6.2 x 8.1
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