LTC3537 Boost Converter Overview



LTC3537 is a 5.25 V, 0.70 A switch current limit sync Boost Converter from . The input voltage from 0.68 V to 5.00 V  can be boosted into an output voltage ranging from 1.50 V to 5.25 V.

Features of the Boost Converter are fixed 2200 kHz switching frequency, a typical inductor size of 2.2 µH and it offers a peak efficiency of  up to 89 %. The minimum external component count is 11 and LTC3537 is available in 1 package option(s): QFN-16 .

For LTC3537 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. 0.68 V
V-IN max. 5.00 V
Current-Limit typ.? 0.70 A
V-OUT min. 1.50 V
V-OUT max. 5.25 V
VOUT adjustable
VOUT programmable no
sync/non-sync sync
Frequency typ. 2200 kHz
Frequency adjustable fixed
Frequency selectable
Frequency adj. min.
Frequency adj. max.
extern clock sync. no
Softstart yes
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. 160 °C
Inductor size typ. 2.2 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Boost
Peak Efficiency 89 %
Component count min. 11
current limit adjustable no
Nr.of package options 1

LTC3537 Datasheet

Link to the most up-to-date LTC3537 datasheet and the product page for EVM, tools and support information.


LTC3537 Price breaks and distributor sample stock

LTC3537 prices and available online distributors.

Available Distributors with stock: 0

no online Distributor with LTC3537 stock available

Available Distributors with stock: 0

no online Distributor with LTC3537 stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to LTC3537. Optional, compare LTC3537 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
25% TPS61028 TPS61028 product overviewTPS61028 product overview Texas Instruments QFN-10

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of LTC3537.

V-IN min. 0.68 V, Current-Limit typ. 0.7 A, V-OUT max. 5.25 V, Frequency typ. 2200 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744302010 0.1 30.0 45.0 0.24 6.95 x 6.8 x 4.7
744302015 0.2 30.0 32.0 0.24 6.95 x 6.8 x 4.7
744307012 0.1 29.0 48.0 0.33 7.4 x 7.2 x 7.2
744310013 0.1 22.0 48.0 0.91 7 x 6.9 x 3.3
744373210010 0.1 7.0 25.0 4.30 4.45 x 4.06 x 1.2
744373240010 0.1 12.0 30.0 3.20 4.45 x 4.06 x 2
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