HT7463B - Holtek Semiconductor

HT7463B Asynchronous Step Down Converter

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 j.

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. With a wide input range from 4.5V to 52V, the HT7463A/B is suitable for a wide range of a.