LT1373HV Boost Converter Overview



LT1373HV is a 42.00 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 42.00 V.

Features of the Boost Converter are fixed 250 kHz switching frequency, a typical inductor size of 22.0 µH and it offers a peak efficiency of  up to 90 %. The minimum external component count is 9 and LT1373HV is available in 2 package option(s): SO-8 PDIP-8 .

For LT1373HV 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.

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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. 42.00 V
VOUT adjustable
VOUT programmable no
sync/non-sync non-sync
Frequency typ. 250 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. 300 kHz
Frequency sync. max. 340 kHz
Down Mode no
Quiescent current max. 1500 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ.
Inductor size typ. 22.0 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Boost
Peak Efficiency 90 %
Component count min. 9
current limit adjustable no
Nr.of package options 2

LT1373HV Datasheet

Link to the most up-to-date LT1373HV datasheet and the product page for EVM, tools and support information.


LT1373HV Price breaks and distributor sample stock

LT1373HV prices and available online distributors.

Available Distributors with stock: 0

no online Distributor with LT1373HV stock available

Available Distributors with stock: 0

no online Distributor with LT1373HV stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LT1373HV. Optional, compare LT1373HV side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LT1371HV LT1371HV product overviewLT1371HV product overview Linear Technology SO-20, TO220-7, DD-7
10% LT1373 LT1373 product overviewLT1373 product overview Linear Technology SO-8, PDIP-8
10% LT1377 LT1377 product overviewLT1377 product overview Linear Technology SO-8, PDIP-8
25% LT1372 LT1372 product overviewLT1372 product overview Linear Technology SO-8, PDIP-8
25% 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 LT1373HV.

V-IN min. 2.7 V, Current-Limit typ. 2 A, V-OUT max. 42 V, Frequency typ. 250 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
7443556082 0.8 41.5 65.0 0.54 18.3 x 18.2 x 9.2
7443630070 0.7 32.0 75.0 0.83 20.8 x 20.5 x 14.5
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