- Evaluation Board User's Guide
- Evaluation Board Data
BD9A400MUV is a synchronous buck switching regulator with built-in low on-resistance power MOSFETs. It is capable of providing current up to 4A.The SLLM™ control provides excellent efficiency characteristics in light-load conditions which make the product ideal for equipment and devices that demand minimal standby power consumption. The oscillating frequency is high at 1MHz using a small value of inductance. It is a current mode control DC/DC converter and features high-speed transient response. Phase compensation can also be set easily.
Integrated FET / Controller
Synchronous / Nonsynchronous
Light Load mode
Operating Temperature (Min.)[°C]
Operating Temperature (Max.)[°C]
Package Size [mm]
This evaluation board has been developed for ROHM’s synchronous buck DC/DC converter customers evaluating BD9A400MUV. While accepting a power supply of 2.7-5.5V, an output of 1.8V can be produced. The IC has internal 60mΩ high-side N-channel MOSFET and 60mΩ low-side N-channel MOSFET and a synchronization frequency is of 1MHz.