AS5422AD Datasheet 18V High Efficiency Synchronous Step-Down Converter

Manufacturer: A1semi

Download the AS5422AD datasheet PDF. This datasheet also includes the AS5422A variant, as both parts are published together in a single manufacturer document.

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AS5422AD 18v high efficiency synchronous step-down converter by A1semi - Datasheet Preview — Note: The manufacturer provides a single datasheet file (AS5422A-A1semi.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	AS5422AD
Manufacturer	A1semi
File Size	504.93 KB
Description	18V High Efficiency Synchronous Step-Down Converter
Download	AS5422AD Download (PDF)

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.

Overview

A1 DC- DC 2A, 18V High Efficiency Electronics Ltd Synchronous Step-Down Converter A1semi AS5422A.

Key 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.

More Datasheets from A1semi

Part Number	Description
AS5422A	18V High Efficiency Synchronous Step-Down Converter
AS5430	3A 400KHz Synchronous Rectified Step-Down Converter