AS1337 Boost Converter Overview



AS1337 is a 5.00 V, 0.85 A switch current limit sync Boost Converter from . The input voltage from 0.85 V to 4.50 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 97 %. The minimum external component count is 6 and AS1337 is available in 1 package option(s): TDFN-8 .

For AS1337 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. 4.50 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 yes
Softstart adjustable no
Tracking no
PG/Power OK yes
Frequency sync. min.
Frequency sync. max.
Down Mode yes
Quiescent current max. 35 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ. 145 °C
Inductor size typ. 4.7 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Boost
Peak Efficiency 97 %
Component count min. 6
current limit adjustable no
Nr.of package options 1

AS1337 Datasheet

Link to the most up-to-date AS1337 datasheet and the product page for EVM, tools and support information.


AS1337 Price breaks and distributor sample stock

AS1337 prices and available online distributors.

Available Distributors with stock: 0

no online Distributor with AS1337 stock available

Available Distributors with stock: 0

no online Distributor with AS1337 stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to AS1337. Optional, compare AS1337 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% LTC3528 LTC3528 product overviewLTC3528 product overview Linear Technology DFN-8
0% MAX849 MAX849 product overviewMAX849 product overview Maxim Integrated SO-16
10% MAX848 MAX848 product overviewMAX848 product overview Maxim Integrated SO-16
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

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of AS1337.

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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