AP3503E Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

AP3503E is a 18.00 V sync Buck Converter from with 3.00 A output current. The maximum 18.00 V input voltage can be regulated down into a 1.00 V to 16.00 V output voltage.

It requires are a typical inductor size of 10.00 µH, a typical external component count of 13 and achieves a peak efficiency of 95 %. Further AP3503E characteristics are a fixed 340 kHz switching frequency and 1 available package option(s): PSOP-8 .

For the AP3503E 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. 18.00 V
I-OUT? 3.00 A
V-OUT min. 1.00 V
V-OUT max. 16.00 V
V-OUT adjustable V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 340 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart yes
Softstart adjustable yes
Tracking no
PG/Power OK no
Quiescent current max. 1400 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ. 160 °C
Inductor size typ. 10.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 95 %
Component count min. 13
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN
SO/SOIC
SOP PSOP-8
DIP
TO
DDPAK

AP3503E Datasheet

Link to the most up-to-date AP3503E datasheet and the product page for EVM, tools and support information.

AP3503E

AP3503E Sample stock and distributor price breaks

AP3503E prices and online available distributors.

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Available Distributors with stock: 0

no online Distributor with AP3503E stock available

Available Distributors with stock: 0

no online Distributor with AP3503E stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to AP3503E. Optional, compare AP3503E side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% AOZ1051PI AOZ1051PI product overviewAOZ1051PI product overview Alpha Omega SO-8-EP
0% AOZ1052PI AOZ1052PI product overviewAOZ1052PI product overview Alpha Omega SO-8-EP
0% AOZ1053PI AOZ1053PI product overviewAOZ1053PI product overview Alpha Omega SO-8-EP
0% AOZ1253PI AOZ1253PI product overviewAOZ1253PI product overview Alpha Omega SO-8-EP
0% AOZ1254PI AOZ1254PI product overviewAOZ1254PI product overview Alpha Omega SO-8-EP
0% AOZ3011PI AOZ3011PI product overviewAOZ3011PI product overview Alpha Omega SO-8-EP
0% AOZ3017PI AOZ3017PI product overviewAOZ3017PI product overview Alpha Omega SO-8-EP
0% AOZ3018PI AOZ3018PI product overviewAOZ3018PI product overview Alpha Omega SO-8-EP
0% XRP7675 XRP7675 product overviewXRP7675 product overview Exar SOIC-8
0% MP28253 MP28253 product overviewMP28253 product overview MPS QFN-14
0% MP28255 MP28255 product overviewMP28255 product overview MPS QFN-14
0% MP28256 MP28256 product overviewMP28256 product overview MPS QFN-14
0% MP28266 MP28266 product overviewMP28266 product overview MPS QFN-14
0% MP8715 MP8715 product overviewMP8715 product overview MPS SOIC-8E
0% MP9186 MP9186 product overviewMP9186 product overview MPS QFN-14
0% RT2853A RT2853A product overviewRT2853A product overview Richtek WQFN-16
0% RT7232 RT7232 product overviewRT7232 product overview Richtek TSSOP-14, WDFN-10
0% RT7234 RT7234 product overviewRT7234 product overview Richtek PSOP-8
0% RT7236 RT7236 product overviewRT7236 product overview Richtek TSSOP-14, WDFN-10
0% RT7240 RT7240 product overviewRT7240 product overview Richtek PSOP-8
0% BD9D321 BD9D321 product overviewBD9D321 product overview Rohm HTSOP-8
10% MAX15066 MAX15066 product overviewMAX15066 product overview Maxim WLP-16
10% MAX15166 MAX15166 product overviewMAX15166 product overview Maxim WLP-16
10% MP1497 MP1497 product overviewMP1497 product overview MPS TSOT23-8
10% MP1499 MP1499 product overviewMP1499 product overview MPS QFN-10
10% MP2214 MP2214 product overviewMP2214 product overview MPS SOIC-8E, QFN-10
10% MP2233 MP2233 product overviewMP2233 product overview MPS TSOT23-8
10% MP2235 MP2235 product overviewMP2235 product overview MPS TSOT23-8
10% MP2240 MP2240 product overviewMP2240 product overview MPS TSOT23-8
10% MP1497S MP1497S product overviewMP1497S product overview MPS TSOT23-8
10% MP2235S MP2235S product overviewMP2235S product overview MPS TSOT23-8
25% LM2655 LM2655 product overviewLM2655 product overview Texas Instruments TSSOP-16
50% AOZ1050PI AOZ1050PI product overviewAOZ1050PI product overview Alpha Omega SO-8-EP
50% AOZ1252PI AOZ1252PI product overviewAOZ1252PI product overview Alpha Omega SO-8-EP
50% AOZ3010PI AOZ3010PI product overviewAOZ3010PI product overview Alpha Omega SO-8-EP
50% AP3502E AP3502E product overviewAP3502E product overview BCDSemi SOIC-8
50% XRP7674 XRP7674 product overviewXRP7674 product overview Exar SOIC-8
50% MP1482 MP1482 product overviewMP1482 product overview MPS SOIC-8
50% MP1496 MP1496 product overviewMP1496 product overview MPS TSOT23-8
50% MP1498 MP1498 product overviewMP1498 product overview MPS TSOT23-8
50% MP2209 MP2209 product overviewMP2209 product overview MPS QFN-14
50% MP2228 MP2228 product overviewMP2228 product overview MPS TSOT23-8
50% MP2234 MP2234 product overviewMP2234 product overview MPS TSOT23-8
50% MP2305 MP2305 product overviewMP2305 product overview MPS SOIC-8
50% MP28313 MP28313 product overviewMP28313 product overview MPS SOIC-8
50% MP29296 MP29296 product overviewMP29296 product overview MPS SOIC-8
50% LM2651 LM2651 product overviewLM2651 product overview Texas Instruments TSSOP-16
50% LM2653 LM2653 product overviewLM2653 product overview Texas Instruments TSSOP-16
50% MP1496S MP1496S product overviewMP1496S product overview MPS TSOT23-8
50% MP2234S MP2234S product overviewMP2234S product overview MPS TSOT23-8

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of AP3503E.

V-IN max. 18 V, I-OUT 3 A, V-OUT min. 1 V, Frequency typ. 340 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
74404052022 2.2 3.0 3.6 31.60 5 x 5 x 2
74404054022 2.2 3.8 5.3 19.00 5 x 5 x 4
74404054033 3.3 3.4 4.3 24.00 5 x 5 x 4
74404063022 2.2 3.8 5.6 20.00 6 x 6 x 2.8
74404063033 3.3 3.5 4.5 25.00 6 x 6 x 2.8
74404064033 3.3 3.7 6.5 21.00 6 x 6 x 4.5
74404084033 3.3 4.4 7.1 17.00 8 x 8 x 4.2
7440650022 2.2 6.2 5.9 11.00 10 x 10 x 3.1
7440650033 3.3 5.3 4.7 15.00 10 x 10 x 3.1
7440660022 2.2 6.7 6.8 7.70 10 x 10 x 4.1
7440660035 3.5 5.8 6.4 11.50 10 x 10 x 4.1
744071022 2.2 5.4 6.3 10.00 8 x 8 x 4.6
74408943022 2.2 3.0 4.6 26.00 4.8 x 4.8 x 4.1
744316330 3.3 5.8 5.8 18.50 5.5 x 5.3 x 4.3
74437324022 2.2 3.3 6.5 51.00 4.45 x 4.06 x 2
74438356022 2.2 4.7 6.2 29.00 4.1 x 4.1 x 2.1
74438356033 3.3 3.6 5.5 39.90 4.1 x 4.1 x 2.1
7447462022 2.2 6.3 4.3 10.00 5.5 x 5.5 x 8.5
7447462033 3.3 4.7 4.0 16.00 5.5 x 5.5 x 8.5
7447713033 3.3 4.6 7.2 20.40 10 x 10 x 3
7447715003 3.3 5.9 7.1 11.50 12 x 12 x 4.5
744772033 3.3 5.0 6.3 9.50 7.8 x 7.8 x 10
744777002 2.2 6.0 6.5 13.00 7.3 x 7.3 x 4.5
744777003 3.3 3.5 4.6 25.00 7.3 x 7.3 x 4.5
7447779002 2.2 4.2 6.0 16.00 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
744778002 2.2 4.0 4.8 14.00 7.3 x 7.3 x 3.4
744778003 3.3 3.1 4.1 24.00 7.3 x 7.3 x 3.4
7447786002 2.2 3.5 4.0 40.00 5.9 x 6.2 x 5.1
7447789002 2.2 4.0 4.8 19.00 7.3 x 7.3 x 3.5
7447789003 3.3 3.4 4.2 24.00 7.3 x 7.3 x 3.5
744787027 2.7 4.4 4.5 13.50 7.8 x 7 x 5
784775022 2.2 6.0 6.0 8.00 7 x 7.8 x 5.5
784775033 3.3 4.9 4.9 12.00 7 x 7.8 x 5.5
784776033 3.3 6.0 7.0 9.00 9 x 10 x 5.9
784778022 2.2 3.1 5.0 42.00 7.3 x 7.3 x 3.5
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