BD9E100FJ-EVK-001

The BD9E100FJ-EVK-001 from ROHM is an evaluation board for BD9E100FJ-LB step-down DC/DC converter. The BD9E100FJ-LB is a synchronous buck switching regulator with built-in low on-resistance power MOSFETs. This evaluation board delivers an output 5V from an input 7.2V to 33V using BD9E100FJ-LB, a synchronous rectification step-down DC/DC converter integrated circuit with output current rating of maximum 1A. The output voltage can be set by changing the external parts of circuit and the loop response characteristics also can be adjusted by the phase compensation circuit. To minimize current consumption during standby mode and normal operation, enable mode can be switched by controlling EN pin (3 pin) of the IC.

• Output voltage setting range from VIN x 0.15V to VIN x 0.7V
• Loop bandwidth of 44.7KHz
• Phase margin of 68.9°
• Input ripple voltage of 60mVpp at IO = 1A
• Output ripple voltage of 40mVpp at IO = 1A
• Output rising time of 3ms
• Operating frequency of 1MHz
• Maximum efficiency of 83.5% at IO = 0.6A