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56-QFN
Integrated Circuits (ICs)

A81805KESJSR

Active
Allegro MicroSystems

IC REG BUCK 3.3V 2.5A 20QFN

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56-QFN
Integrated Circuits (ICs)

A81805KESJSR

Active
Allegro MicroSystems

IC REG BUCK 3.3V 2.5A 20QFN

Deep-Dive with AI

DocumentsDatasheet

Technical Specifications

Parameters and characteristics for this part

SpecificationA81805KESJSR
Current - Output2.5 A
Frequency - Switching [Max]2.5 MHz
Frequency - Switching [Min]400 kHz
FunctionStep-Down
Mounting TypeWettable Flank, Surface Mount
Number of Outputs1
Operating Temperature [Max]150 °C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Package / Case20-VFQFN Exposed Pad
Supplier Device Package20-QFN (4x4)
Synchronous RectifierTrue
TopologyBuck
Voltage - Input (Max) [Max]36 V
Voltage - Input (Min) [Min]3.5 V
Voltage - Output (Min/Fixed)3.3 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyCut Tape (CT) 1$ 2.25
10$ 1.66
25$ 1.52
100$ 1.36
250$ 1.28
500$ 1.24
1000$ 1.20
2500$ 1.16
Digi-Reel® 1$ 2.25
10$ 1.66
25$ 1.52
100$ 1.36
250$ 1.28
500$ 1.24
1000$ 1.20
2500$ 1.16
N/A 12000$ 2.25
Tape & Reel (TR) 6000$ 1.05

Description

General part information

A81805 Series

Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 2.5A 20-VFQFN Exposed Pad

Documents

Technical documentation and resources