BU9000XGWZ Step-Down Switching Regulators ROHM's BU9000XGWZ High-Efficiency Step-Down Switching Regulators are high efficiency 6MHz synchronous step-down switching regulators with ultra low current PFM mode. They provide up to 1.0A load current and an input voltage range from 3.0V to 5.5V, optimized for battery powered portable applications. BU9000XGWZ has a mode control pin that allows the user to select Forced PWM (Pulse Width Modulation) mode or PFM (Pulse Frequency Modulation) mode and PWM auto change mode which can be utilized to save power during operation at light load current.Learn More