BD9G401EFJ Series

1ch Buck Converter Integrated FET

Catalog

1ch Buck Converter Integrated FET

Part	Mounting Type	Number of Outputs	Voltage - Output (Max) [Max]	Topology	Voltage - Input (Max) [Max]	Supplier Device Package	Output Type	Synchronous Rectifier	Frequency - Switching	Package / Case	Package / Case [y]	Package / Case [x]	Voltage - Output (Min/Fixed)	Function	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Min) [Min]	Output Configuration	Current - Output
Rohm Semiconductor BD9G401EFJ-E2	Surface Mount	1	42 V	Buck	42 V	8-HTSOP-JES	Adjustable		300 kHz	8-SOIC Exposed Pad	3.9 mm	0.154 in	0.8 V	Step-Down	-40 C	105 ░C	4.5 V	Positive	3.5 A

Catalog

1ch Buck Converter Integrated FET

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.