AAT1276 Boost Converter Overview



AAT1276 is a 5.50 V, 2.50 A switch current limit sync Boost Converter from . The input voltage from 2.70 V to 5.00 V  can be boosted into an output voltage ranging from 2.70 V to 5.50 V.

Features of the Boost Converter are fixed 2000 kHz switching frequency, a typical inductor size of 2.2 µH and it offers a peak efficiency of  up to 90 %. The minimum external component count is 8 and AAT1276 is available in 2 package option(s): TDFN34-16 TSOPJW-12 .

For AAT1276 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.

Search Filter
V-IN min. 2.70 V
V-IN max. 5.00 V
Current-Limit typ.? 2.50 A
V-OUT min. 2.70 V
V-OUT max. 5.50 V
VOUT adjustable
VOUT programmable no
sync/non-sync sync
Frequency typ. 2000 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 no
Frequency sync. min.
Frequency sync. max.
Down Mode no
Quiescent current max. -100 µA
Operating min. -40 °C
Operating max. 85 °C
Junction min.
Junction max.
thermal shutdown typ. 140 °C
Inductor size typ. 2.2 µH
Inductor suggested by Würth Elektronik
Automotive AEC-Q100 no
Light-Load-Mode yes
Topology Boost
Peak Efficiency 90 %
Component count min. 8
current limit adjustable yes
Nr.of package options 2

AAT1276 Datasheet

Link to the most up-to-date AAT1276 datasheet and the product page for EVM, tools and support information.


AAT1276 Price breaks and distributor sample stock

AAT1276 prices and available online distributors.


Available Distributors with stock: 0

no online Distributor with AAT1276 stock available

Available Distributors without stock: 1

Mouser-Electronics (0)

AAT1276ITP-5.0-T1NoneBuy Now
AAT1276IRN-5.0-T1NoneBuy Now
AAT1276ITP-5.0-DB1NoneBuy Now
AAT1276ITP-5.0-DB1NoneBuy Now

Available Distributors with stock: 0

no online Distributor with AAT1276 stock available

Alternatives and equivalents

The following DC/DC Boost Converter are similar to AAT1276. Optional, compare AAT1276 side-by-side with other Boost Converter via the Comparison function.

Variation Compare Product Manufacturer Package
0% AAT2215 AAT2215 product overviewAAT2215 product overview Skyworks TDFN33-12
10% MAX1763 MAX1763 product overviewMAX1763 product overview Maxim Integrated TSSOP-EP-16
10% MAX8627 MAX8627 product overviewMAX8627 product overview Maxim Integrated TDFN-EP-14
25% TPS61281 TPS61281 product overviewTPS61281 product overview Texas Instruments DSBGA-16
25% TPS61282 TPS61282 product overviewTPS61282 product overview Texas Instruments DSBGA-16
25% TPS61281A TPS61281A product overviewTPS61281A product overview Texas Instruments DSBGA-16
25% TPS61282A TPS61282A product overviewTPS61282A product overview Texas Instruments DSBGA-16
50% AS1326 AS1326 product overviewAS1326 product overview AMS TDFN-10
50% LTC3125 LTC3125 product overviewLTC3125 product overview Linear Technology DFN-8
50% MAX1760 MAX1760 product overviewMAX1760 product overview Maxim Integrated TDFN-EP-10, uMAX-10
50% MAX1765 MAX1765 product overviewMAX1765 product overview Maxim Integrated TSSOP-EP-16

Inductor suggestions

Below you can find matching inductors from Wuerth Elektronik calculated on the maximum parameters of AAT1276.

V-IN min. 2.7 V, Current-Limit typ. 2.5 A, V-OUT max. 5.5 V, Frequency typ. 2000 kHz
Order Code Spec L (µH) IR (A) ISAT (A) RDC (mΩ) L x W x H (mm)
744373240033 0.3 8.0 16.5 7.80 4.45 x 4.06 x 2
744383360033 0.3 5.5 8.3 14.00 3 x 3 x 2
744383560033 0.3 9.6 12.4 6.00 4.1 x 4.1 x 2.1
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