BD9G401EFJ-E2

General Description

BD9G401EFJ is buck converters with built-in high side 

MOSFET. It has an input voltage range of 4.5V to 42V.

Current mode architecture provides fast transient 

response and a simple phase compensation setup.

The IC is mainly used as a secondary side power supply:

for example, a step-down output of 3.3V/5V can be 

produced from voltage power supply such as 12V or 24V.

In addition, it has a synchronization function with an

external CLK that provides noise management.