Holtek Semiconductor HT7463B
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. The operating frequency is fixed at 1250/5| Part No. | HT7463B |
|---|---|
| Datasheet | HT7463B Download |
| Manufacturer |  Holtek Semiconductor |
| Description | Asynchronous Step Down Converter |
| Buy | Stock & Price |
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
APPLICATIONS
● Power Meters● Distribution Power Systems
● Battery Chargers
● Pre-Regulator for Linear Regulators
GENERAL DESCRIPTION
The HT7463A/B is a current mode buck converter. 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. The operating frequency is fixed at 1250/5
