The ROHM PWM controller used as AC to DC converter in power supplies which works at operating power supply voltage range of 9.3 V to 55.0 V which gives benefits of high flexibility in power supply design, high efficiency and can be use in OA equipment, AC adapters, each household applications and power supplies for motor.High flexibility in power supply designAC low voltage protection functionPWM type current mode controlFrequency reduction functionSwitching function of operation modesPower save function