MP28255 Buck Converter overview

Description

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MP28255 is a 21.00 V sync Buck Converter from with 4.00 A output current. The maximum 21.00 V input voltage can be regulated down into a 0.80 V to 19.00 V output voltage.

It requires are a typical inductor size of 2.00 µH, a typical external component count of 10 and achieves a peak efficiency of 95 %. Further MP28255 characteristics are a fixed 500 kHz switching frequency and 1 available package option(s): QFN-14 .

For the MP28255 replacement search, please 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.

ParameterValueReplacement
Search Filter
V-IN min. 4.50 V
V-IN max. 21.00 V
I-OUT? 4.00 A
V-OUT min. 0.80 V
V-OUT max. 19.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 500 kHz
Frequency fixed
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 300 kHz
Frequency adj./ ext.clock max 2000 kHz
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK yes
Quiescent current max. 700 µA
Operating min. -20 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ. 150 °C
Inductor size typ. 2.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 95 %
Component count min. 10
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN QFN-14
SO/SOIC
SOP
DIP
TO
DDPAK

MP28255 Datasheet

Link to the most up-to-date MP28255 datasheet and the product page for EVM, tools and support information.

MP28255

MP28255 Sample stock and distributor price breaks

MP28255 prices and online available distributors.

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Available Distributors with stock: 0

no online Distributor with MP28255 stock available

Available Distributors with stock: 0

no online Distributor with MP28255 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to MP28255. Optional, compare MP28255 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
25% MP2214 MP2214 product overviewMP2214 product overview MPS SOIC-8E, QFN-10
25% MP28253 MP28253 product overviewMP28253 product overview MPS QFN-14
50% MP2209 MP2209 product overviewMP2209 product overview MPS QFN-14

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of MP28255.

V-IN max. 21 V, I-OUT 4 A, V-OUT min. 0.8 V, Frequency typ. 500 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404054010 1.0 4.9 8.0 12.00 5 x 5 x 4
74404054015 1.5 4.3 6.9 15.00 5 x 5 x 4
74404063010 1.0 5.2 7.5 10.00 6 x 6 x 2.8
74404063012 1.2 6.2 8.5 11.00 6 x 6 x 2.8
74404063015 1.5 4.6 6.6 13.00 6 x 6 x 2.8
74404064015 1.5 5.0 9.7 12.00 6 x 6 x 4.5
74404084015 1.5 5.7 9.0 10.00 8 x 8 x 4.2
744065001 1.0 8.0 9.5 4.90 10 x 10 x 3.1
7440650015 1.5 7.2 7.5 7.30 10 x 10 x 3.1
7440660015 1.5 7.2 10.0 5.20 10 x 10 x 4.1
744316150 1.5 9.0 9.0 8.15 5.5 x 5.3 x 4.3
74437324010 1.0 5.0 9.0 22.00 4.45 x 4.06 x 2
74437324012 1.2 4.7 8.5 25.00 4.45 x 4.06 x 2
74438336010 1.0 4.0 5.0 26.00 3 x 3 x 2
74438356010 1.0 7.2 9.0 12.00 4.1 x 4.1 x 2.1
74438356012 1.2 5.8 9.0 15.00 4.1 x 4.1 x 2.1
74438356015 1.5 5.8 7.8 16.00 4.1 x 4.1 x 2.1
744732015 1.5 7.0 9.0 7.00 9 x 9 x 8
7447462010 1.0 8.5 8.0 6.00 5.5 x 5.5 x 8.5
7447713015 1.5 6.2 9.5 13.70 10 x 10 x 3
744772010 1.0 7.5 10.0 4.70 7.8 x 7.8 x 10
7447730 1.0 4.0 5.7 14.00 4 x 4.5 x 3.5
7447779001 1.0 5.3 9.5 10.00 7.3 x 7.3 x 4.5
74477790015 1.5 4.3 7.3 15.00 7.3 x 7.3 x 4.5
744778001 1.0 5.4 6.4 9.00 7.3 x 7.3 x 3.4
7447786001 1.0 5.0 5.5 28.00 5.9 x 6.2 x 5.1
7447789001 1.0 5.4 6.4 10.00 7.3 x 7.3 x 3.5
744787012 1.2 4.9 6.0 8.50 7.8 x 7 x 5
7847730 1.0 4.0 5.7 14.00 4 x 4.5 x 3.5
784775012 1.2 6.2 8.0 5.00 7 x 7.8 x 5.5
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