AAT1157-3.3 Buck Converter overview

Description

Manufacturer
 
Category
Sub-Category

AAT1157-3.3 is a 5.50 V sync Buck Converter from with 1.20 A output current. The maximum 5.50 V input voltage can be regulated down into a 3.30 V to 3.30 V output voltage.

It requires are a typical inductor size of 3.00 µH, a typical external component count of 7 and achieves a peak efficiency of 95 %. Further AAT1157-3.3 characteristics are a fixed 1000 kHz switching frequency and 1 available package option(s): QFN-16 .

For the AAT1157-3.3 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. 2.70 V
V-IN max. 5.50 V
I-OUT? 1.20 A
V-OUT min. 3.30 V
V-OUT max. 3.30 V
V-OUT 3.300 V
V-OUT programmable no
sync/non-sync sync
Frequency typ. 1000 kHz
Frequency fixed
Frequency selectable
ext.clock sync. no
Frequency adj./ ext.clock min.
Frequency adj./ ext.clock max
Softstart yes
Softstart adjustable no
Tracking no
PG/Power OK no
Quiescent current max. 300 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min. -40 °C
Junction max. 150 °C
thermal shutdown typ. 140 °C
Inductor size typ. 3.00 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Buck
Peak Efficiency 95 %
Component count min. 7
current limit adjustable no
Nr.of packages 1
CSP
SC70
SOT
MSOP
QFN/DFN QFN-16
SO/SOIC
SOP
DIP
TO
DDPAK

AAT1157-3.3 Datasheet

Link to the most up-to-date AAT1157-3.3 datasheet and the product page for EVM, tools and support information.

AAT1157-3.3

AAT1157-3.3 Sample stock and distributor price breaks

AAT1157-3.3 prices and online available distributors.

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Available Distributors with stock: 0

no online Distributor with AAT1157 stock available

Available Distributors without stock: 1

Mouser-Electronics (0)

ProductStockPriceBuy
AAT1157IVN-T1NoneBuy Now
AAT1157IVN-DB1NoneBuy Now

Available Distributors with stock: 0

no online Distributor with AAT1157 stock available

List of equivalents and alternatives

The following DC/DC Buck Converter are similar to AAT1157-3.3. Optional, compare AAT1157-3.3 side-by-side with other Buck Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% ADP2106-3,3 ADP2106-3,3 product overviewADP2106-3,3 product overview Analog Devices QFN-16
0% ADP2107-3,3 ADP2107-3,3 product overviewADP2107-3,3 product overview Analog Devices QFN-16
0% ADP2119-3,3 ADP2119-3,3 product overviewADP2119-3,3 product overview Analog Devices QFN-10
0% ADP2120-3,3 ADP2120-3,3 product overviewADP2120-3,3 product overview Analog Devices QFN-10
0% MAX1556-3.3 MAX1556-3.3 product overviewMAX1556-3.3 product overview Maxim TDFN-EP-10
0% MAX1644-3.3 MAX1644-3.3 product overviewMAX1644-3.3 product overview Maxim SSOP-16
0% MIC23150-3.3 MIC23150-3.3 product overviewMIC23150-3.3 product overview Micrel MLF-8
0% BD9111 BD9111 product overviewBD9111 product overview Rohm SON-8
0% LM2651-3.3 LM2651-3.3 product overviewLM2651-3.3 product overview Texas Instruments TSSOP-16
0% TPS62046 TPS62046 product overviewTPS62046 product overview Texas Instruments QFN-10, MSOP
0% TPS62063 TPS62063 product overviewTPS62063 product overview Texas Instruments SON-8
0% TPS62111 TPS62111 product overviewTPS62111 product overview Texas Instruments QFN-16
0% RP506x-D-E-3.3 RP506x-D-E-3.3 product overviewRP506x-D-E-3.3 product overview Ricoh DFN-10
0% RP506x-A-B-3.3 RP506x-A-B-3.3 product overviewRP506x-A-B-3.3 product overview Ricoh DFN-10
0% XC9261-C-3.3 XC9261-C-3.3 product overviewXC9261-C-3.3 product overview Torex USP-6, SOT89-5
0% XC9261-D-3.3 XC9261-D-3.3 product overviewXC9261-D-3.3 product overview Torex USP-6, SOT89-5
0% TS30012-3.3 TS30012-3.3 product overviewTS30012-3.3 product overview Triune Systems QFN-16
0% TS33002-3.3 TS33002-3.3 product overviewTS33002-3.3 product overview Triune Systems QFN-16
0% TS30022-3.3 TS30022-3.3 product overviewTS30022-3.3 product overview Triune Systems QFN-16
0% TPS62111-EP TPS62111-EP product overviewTPS62111-EP product overview Texas Instruments QFN-16

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of AAT1157-3.3.

V-IN max. 5.5 V, I-OUT 1.2 A, V-OUT min. 3.3 V, Frequency typ. 1000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744025002 2.2 1.8 2.4 57.00 2.8 x 2.8 x 3
744025003 3.3 1.5 1.8 85.00 2.8 x 2.8 x 3
74404024022 2.2 1.8 2.0 80.00 2.5 x 2 x 1.2
74404032022 2.2 1.8 1.7 50.00 3 x 3 x 1.5
74404032033 3.3 1.5 1.5 70.00 3 x 3 x 1.5
74404041033 3.3 1.8 2.1 69.00 4 x 4 x 1.2
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
7440420027 2.7 2.0 2.2 47.00 4.8 x 4.8 x 2
744042003 3.3 2.0 1.8 50.00 4.8 x 4.8 x 2
7440430022 2.2 2.5 2.4 27.00 4.8 x 4.8 x 3
7440430027 2.7 2.4 2.0 25.00 4.8 x 4.8 x 3
744043003 3.3 2.2 1.8 30.00 4.8 x 4.8 x 3
744045002 2.2 1.6 2.8 88.00 4.5 x 3.2 x 2.9
7440450027 2.7 1.5 2.7 96.00 4.5 x 3.2 x 2.9
744045003 3.3 1.4 2.7 104.00 4.5 x 3.2 x 2.9
744052002 2.5 2.4 2.7 20.00 5.8 x 5.8 x 2
744052003 3.0 2.2 2.4 40.00 5.8 x 5.8 x 2
744053002 2.6 3.0 2.7 20.00 5.8 x 5.8 x 3
744053003 3.0 2.8 2.5 20.00 5.8 x 5.8 x 3
744062002 2.2 3.4 2.7 10.00 6.8 x 6.8 x 2.5
744062003 3.3 2.8 2.5 20.00 6.8 x 6.8 x 2.5
7440680027 2.7 2.2 1.9 52.00 8 x 8 x 1.2
7440680033 3.3 2.0 1.8 61.00 8 x 8 x 1.2
7440690022 2.2 2.8 2.9 35.00 8 x 8 x 1.5
7440690033 3.3 2.6 2.3 42.00 8 x 8 x 1.5
7440700033 3.3 3.2 2.6 30.00 8 x 8 x 2
74408941029 2.9 1.6 3.0 101.00 4.8 x 4.8 x 2.1
74408941035 3.5 1.5 2.8 113.00 4.8 x 4.8 x 2.1
74438322022 2.2 1.3 2.2 252.00 2.5 x 2 x 0.8
74438323022 2.2 1.3 2.5 147.00 2.5 x 2 x 1
74438323033 3.3 1.3 2.1 220.00 2.5 x 2 x 1
74438324022 2.2 1.6 2.9 123.00 2.5 x 2 x 1.2
74438324033 3.3 1.3 2.6 226.00 2.5 x 2 x 1.2
744773027 2.7 2.3 3.0 39.00 4 x 4.5 x 3.5
744773033 3.3 2.0 2.9 41.00 4 x 4.5 x 3.5
7447785003 3.3 2.8 3.0 43.00 5.9 x 6.2 x 3.3
74479275222 2.2 1.3 1.7 166.00 2 x 1.25 x 1
74479276222 2.2 1.4 1.8 135.00 2 x 1.6 x 1
74479276222C 2.2 1.6 2.5 112.00 2 x 1.25 x 1
74479287222 2.2 1.5 2.5 132.00 2.5 x 2 x 1
74479288222 2.2 1.7 2.8 90.00 2.5 x 2 x 1.2
74479889222 2.2 1.3 1.7 250.00 2.5 x 2 x 1.2
78438322022 2.2 1.3 2.2 252.00 2.5 x 2 x 0.8
78438323022 2.2 1.3 2.5 147.00 2.5 x 2 x 1
78438323033 3.3 1.3 2.1 220.00 2.5 x 2 x 1
784773033 3.3 2.0 2.9 41.00 4 x 4.5 x 3.5
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