HT7463C/HT7463D
60V/600mA, 1.25MHz/550kHz Asynchronous Step Down Converter
General Information
The HT7463C/D is a current mode buck converter. With a wide input range from 4.5V to 60V, the HT7463C/D 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 95% and the added advantage of reduced junction temperature. The operating frequency is fixed at 1250/550kHz for the HT7463C/HT7463D respectively. The HT7463C allows the use of small external components while still being able to have low output voltage ripple. A soft-start function can be implemented using the enable pin and by connecting an external RC circuit allowing the user to tailor the soft-start time to a specific application.
Feature Details
| Attribute | Value |
|---|---|
| Wide Input Voltage Range 4.5V to 60V | Available |
| 60V / 0.9Ω Internal Power MOSFET | Available |
| 600mA Peak Output Current | Available |
| Up to 95% Efficiency | Available |
| 1.25MHz (HT7463C) and 550kHz (HT7463D) Fixed Operating Frequency | Available |
| Ultra Low Shutdown Current < 1μA | Available |
| Output Short Circuit Protection | Available |
| Thermal Shutdown Protection | Available |
| Package Type | 6-pin SOT23 |
Resources
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