A7985A Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

A7985A is a 38.00 V non-sync Buck Converter from with 2.00 A output current. The maximum 38.00 V input voltage can be regulated down into a 0.60 V to 38.00 V output voltage.

It requires are a typical inductor size of 10.00 µH, a typical external component count of 9 and achieves a peak efficiency of 92 %. Further A7985A characteristics are a fixed 250 kHz switching frequency and 1 available package option(s): HSOP-8 .

For the A7985A 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. 38.00 V
I-OUT? 2.00 A
V-OUT min. 0.60 V
V-OUT max. 38.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync non-sync
Frequency typ. 250 kHz
Frequency fixed
Frequency selectable
ext.clock sync. yes
Frequency adj./ ext.clock min. 275 kHz
Frequency adj./ ext.clock max 1000 kHz
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 2400 µA
Operating min.
Operating max.
Junction min. -40 °C
Junction max. 125 °C
thermal shutdown typ. 150 °C
Inductor size typ. 10.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 yes
Light-Load-Mode no
Topology Buck
Peak Efficiency 92 %
Component count min. 9
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP HSOP-8
DIP
TO
DDPAK

A7985A Datasheet

Link to the most up-to-date A7985A datasheet and the product page for EVM, tools and support information.

A7985A

A7985A Sample stock and distributor price breaks

A7985A prices and online available distributors.

OEMSecrets.com
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Available Distributors with stock: 0

no online Distributor with A7985A stock available

Available Distributors with stock: 0

no online Distributor with A7985A stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to A7985A. Optional, compare A7985A side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% A7986A A7986A product overviewA7986A product overview ST HSOP-8
10% TLE8366 TLE8366 product overviewTLE8366 product overview Infineon DSO-8
25% NCV890201 NCV890201 product overviewNCV890201 product overview ON Semiconductor DFN-10
50% NCV890101 NCV890101 product overviewNCV890101 product overview ON Semiconductor DFN-10
50% NCV890131 NCV890131 product overviewNCV890131 product overview ON Semiconductor DFN-10

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of A7985A.

V-IN max. 38 V, I-OUT 2 A, V-OUT min. 0.6 V, Frequency typ. 250 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404042033 3.3 2.0 2.9 55.00 4 x 4 x 1.8
74404052033 3.3 2.6 3.0 42.20 5 x 5 x 2
74404052039 3.9 2.4 2.8 50.50 5 x 5 x 2
74404052047 4.7 2.3 2.7 55.90 5 x 5 x 2
74404052056 5.6 2.1 2.6 67.50 5 x 5 x 2
74404054033 3.3 3.4 4.3 24.00 5 x 5 x 4
74404054047 4.7 3.0 3.8 30.00 5 x 5 x 4
74404063033 3.3 3.5 4.5 25.00 6 x 6 x 2.8
74404063047 4.7 3.1 3.3 30.00 6 x 6 x 2.8
744062003 3.3 2.8 2.5 20.00 6.8 x 6.8 x 2.5
7440650033 3.3 5.3 4.7 15.00 10 x 10 x 3.1
7440650047 4.7 4.6 4.2 16.50 10 x 10 x 3.1
7440700033 3.3 3.2 2.6 30.00 8 x 8 x 2
744071039 3.9 4.9 4.5 13.00 8 x 8 x 4.6
744071047 4.7 4.8 4.3 17.00 8 x 8 x 4.6
744071056 5.6 4.0 4.0 20.00 8 x 8 x 4.6
74408942033 3.3 2.1 3.5 48.30 4.8 x 4.8 x 3.1
74408943033 3.3 2.6 3.6 31.00 4.8 x 4.8 x 4.1
74408943047 4.7 2.2 3.2 45.00 4.8 x 4.8 x 4.1
744316470 4.7 4.6 4.7 24.50 5.5 x 5.3 x 4.3
744316560 5.6 4.5 4.6 28.50 5.5 x 5.3 x 4.3
74437321033 3.3 2.3 3.9 84.00 4.45 x 4.06 x 1.2
74437324033 3.3 2.5 4.2 69.00 4.45 x 4.06 x 2
74437324047 4.7 2.2 4.0 95.00 4.45 x 4.06 x 2
74437324056 5.6 2.0 3.8 120.00 4.45 x 4.06 x 2
74438336033 3.3 2.2 4.3 99.00 3 x 3 x 2
74438356047 4.7 2.9 4.7 63.00 4.1 x 4.1 x 2.1
74438356056 5.6 2.8 4.6 68.00 4.1 x 4.1 x 2.1
7447462033 3.3 4.7 4.0 16.00 5.5 x 5.5 x 8.5
7447462047 4.7 4.2 3.7 19.00 5.5 x 5.5 x 8.5
744773033 3.3 2.0 2.9 41.00 4 x 4.5 x 3.5
744777003 3.3 3.5 4.6 25.00 7.3 x 7.3 x 4.5
744777004 4.7 3.2 4.0 25.00 7.3 x 7.3 x 4.5
7447779003 3.3 3.3 4.5 26.00 7.3 x 7.3 x 4.5
7447779004 4.7 3.2 4.4 28.00 7.3 x 7.3 x 4.5
744778003 3.3 3.1 4.1 24.00 7.3 x 7.3 x 3.4
744778004 4.7 2.3 4.2 42.00 7.3 x 7.3 x 3.4
7447785003 3.3 2.8 3.0 43.00 5.9 x 6.2 x 3.3
7447785004 4.7 2.2 2.5 60.00 5.9 x 6.2 x 3.3
7447786004 4.7 2.8 2.8 57.00 5.9 x 6.2 x 5.1
7447789003 3.3 3.4 4.2 24.00 7.3 x 7.3 x 3.5
7447789004 4.7 2.9 3.9 33.00 7.3 x 7.3 x 3.5
744787039 3.9 3.8 4.0 16.70 7.8 x 7 x 5
744787047 4.7 3.3 3.6 24.30 7.8 x 7 x 5
784773033 3.3 2.0 2.9 41.00 4 x 4.5 x 3.5
784775033 3.3 4.9 4.9 12.00 7 x 7.8 x 5.5
784775047 4.7 4.5 4.5 16.00 7 x 7.8 x 5.5
784775056 5.6 4.0 4.0 18.00 7 x 7.8 x 5.5
784777033 3.3 2.5 4.7 58.00 7.3 x 7.3 x 4.3
784777047 4.7 2.4 3.7 70.00 7.3 x 7.3 x 4.3
784778033 3.3 2.7 3.7 54.00 7.3 x 7.3 x 3.5
784778047 4.7 2.4 3.1 66.00 7.3 x 7.3 x 3.5
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