HT7463B SOT23-6

The HT7463A/B is a current mode buck converter. With a wide input range from 4.5V to 52V, the HT7463x 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. The operating frequency is fixed at 1250/550kHz for the HT7463x respectively. It 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.

Features

Wide Input Voltage Range 4.5V to 52V
52V / 0.9(Ω) 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