TPS61251 Boost Converter Overview



TPS61251 is a 6.50 V, 1.50 A switch current limit sync Boost Converter from . The input voltage from 2.30 V to 6.00 V  can be boosted into an output voltage ranging from 3.00 V to 6.50 V.

Features of the Boost Converter are fixed 3500 kHz switching frequency, a typical inductor size of 1.0 µH and it offers a peak efficiency of  up to 92 %. The minimum external component count is 9 and TPS61251 is available in 1 package option(s): QFN-8 .

For TPS61251 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. 2.30 V
V-IN max. 6.00 V
Current-Limit typ.? 1.50 A
V-OUT min. 3.00 V
V-OUT max. 6.50 V
VOUT adjustable
VOUT programmable no
sync/non-sync sync
Frequency typ. 3500 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. -30 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 140 °C
Inductor size typ. 1.0 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Boost
Peak Efficiency 92 %
Component count min. 9
current limit adjustable yes
Nr.of package options 1

TPS61251 Datasheet

Link to the most up-to-date TPS61251 datasheet and the product page for EVM, tools and support information.


TPS61251 Price breaks and distributor sample stock

TPS61251 prices and available online distributors.

Available Distributors with stock: 0

no online Distributor with TPS61251 stock available

Available Distributors with stock: 0

no online Distributor with TPS61251 stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to TPS61251. Optional, compare TPS61251 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% TPS61252 TPS61252 product overviewTPS61252 product overview Texas Instruments QFN-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of TPS61251.

V-IN min. 2.3 V, Current-Limit typ. 1.5 A, V-OUT max. 6.5 V, Frequency typ. 3500 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
74407000018 0.2 9.0 9.0 3.51 8 x 8 x 2
744089410022 0.2 4.5 9.5 15.00 4.8 x 4.8 x 2.1
744089420022 0.2 5.3 13.5 12.20 4.8 x 4.8 x 3.1
744089430022 0.2 5.0 13.0 12.00 4.8 x 4.8 x 4.1
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