HT7463B Datasheet Asynchronous Step Down Converter

Manufacturer: Holtek Semiconductor

Download the HT7463B datasheet PDF. This datasheet also includes the HT7463A variant, as both parts are published together in a single manufacturer document.

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HT7463B asynchronous step down converter by Holtek Semiconductor - Datasheet Preview — Note: The manufacturer provides a single datasheet file (HT7463A-HoltekSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	HT7463B
Manufacturer	Holtek Semiconductor
File Size	1.70 MB
Description	Asynchronous Step Down Converter
Download	HT7463B Download (PDF)

General Description

The HT7463A/B is a current mode buck converter.

With a wide input range from 4.5V to 52V, the HT7463A/B is suitable for a wide range of applications such as power conditioning from unregulated sources.

Having a low internal switch typical RDSON value of 0.9Ω, the device has a good operating typical efficiency value of 85% and the added advantage of reduced junction temperature.

Overview

HT7463A/HT7463B 52V/600mA, 1.25MHz/550kHz Asynchronous Step Down.

Key Features

Wide Input Voltage Range 4.5V to 52V.
52V / 0.9Ω Internal Power MOSFET.
600mA Peak Output Current.
Up to 90% Efficiency.
1.25MHz (HT7463A) and 550kHz (HT7463B) Fixed Operating Frequency.
Ultra Low Shutdown Current < 1µA.
Output Short Circuit Protection.
Thermal Shutdown Protection.
Package Type: SOT23-6.

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