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AS5422A - 18V High Efficiency Synchronous Step-Down Converter

Datasheet Summary

Description

The AS5422A is a wide input range, high-efficiency, step-down switching regulator, capable of delivering up to 2A of output current.

Features

  • ‹ ‹ Wide Input Operating Range from 4.5V to 18V High Efficiency: Up to 90%at Light Load Up to 95% at Heavy Load ‹ ‹ ‹ ‹ ‹ ‹ ‹ Capable of Delivering 2A Input OVP at 20V No External Schottky Diode Needed Current Mode control 0.923V Reference for Low Output voltages Logic Control Shutdown Thermal shutdown and UVLO.

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Datasheet Details

Part number AS5422A
Manufacturer A1semi
File Size 504.93 KB
Description 18V High Efficiency Synchronous Step-Down Converter
Datasheet download datasheet AS5422A Datasheet
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Full PDF Text Transcription

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A1 DC- DC 2A, 18V High Efficiency Electronics Ltd Synchronous Step-Down Converter A1semi AS5422A General Description The AS5422A is a wide input range, high-efficiency, step-down switching regulator, capable of delivering up to 2A of output current. Current mode PWM control allows the use of small external components, such as ceramic input and output caps, as well as small inductors, while still providing low output ripples. On top of the integrated internal synchronous rectifier that eliminates external Schottky diode, AS5422A also employs a proprietary control scheme that switches the device into a power save mode during light load, thereby extending the range of high efficiency operation.
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