BD9C401EFJ
4.5V to 18V Input, 4.0A Integrated MOSFET 1ch Synchronous Buck DC/DC Converter
BD9C401EFJ
4.5V to 18V Input, 4.0A Integrated MOSFET 1ch Synchronous Buck DC/DC Converter
BD9C401EFJ is a synchronous buck switching regulator with built-in low on-resistance power MOSFETs. With wide input voltage range, It is capable of providing current of up to 4A. It is a current mode control DC/DC converter and features high-speed transient response. Phase compensation can also be set easily.
For Automotive usage, please contact Sales.
Product Detail
Specifications:
ch
1
Integrated FET / Controller
Integrated FET
Topology
Buck
Synchronous / Nonsynchronous
Synchronous
Vin1(Min.)[V]
4.5
Vin1(Max.)[V]
18
Vout1(Min.)[V]
0.8
Vout1(Max.)[V]
12.6
Iout1(Max.)[A]
4
SW frequency setting (Max.)[MHz]
0.55
Light Load mode
No
EN
Yes
PGOOD
No
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
4.9x6.0 (t=1.0)
Features:
・ Synchronous 1 ch DC/DC converter・ Over Current protection
・ Thermal Shutdown protection
・ Under Voltage lockout protection
・ Short Circuit Protection
・ Fixed soft start function 1msec
Reference Design / Application Evaluation Kit
-
- Evaluation Board - BD9C401EFJ-EVK-001
This evaluation board has been developed for ROHM’s synchronous buck DC/DC converter customers evaluating BD9C401EFJ. While accepting a power supply of 4.72-18V, an output of 3.3V can be produced. The IC has internal 65mΩ high-side P-channel MOSFET and 35mΩ low-side N-channel MOSFET and a synchronization frequency is of 500kHz.
