Holtek Semiconductor HT7463D
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. The operating frequency is fixed at 1250/550kHz for the HT7463C/HT7463D respectively.| Part No. | HT7463D |
|---|---|
| Datasheet | HT7463D Download |
| Manufacturer |  Holtek Semiconductor |
| Description | Asynchronous Step Down Converter |
| Buy | Stock & Price |
FEATURES
● Wide Input Voltage Range 4.5V to 60V● 60V/0.9Ω Internal Power MOSFET
● 600mA Peak Output Current
● Up to 95% Efficiency
● 1.25MHz (HT7463C) and 550kHz (HT7463D) Fixed Operating Frequency
● Ultra Low Shutdown Current < 1µA
● Output Short Circuit Protection
● Thermal Shutdown Protection
● Package Type: 6-pin SOT23
APPLICATIONS
● Power Meters● Distribution Power Systems
● Battery Chargers
● Pre-Regulator for Linear Regulators
GENERAL DESCRIPTION
The HT7463C/D 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 95% and the added advantage of reduced junction temperature. 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. Rev. 1.10 3 May 24, 2...
