The MCR18EZPF4642 is a high-efficiency current-mode switching regulator made by ROHM. It is part of the SiC662 product family, which is designed for power supply solutions. This is a single-phase synchronous rectified buck-boost regulator equipped with an integrated high-side power MOSFET for reverse current protection. It can provide output current up to 4.6A and auto-restart current from as low as 20mA up to 800mA. It also features a high efficiency of up to 96% and can support a wide input voltage range from 4.5V to 80V. The MCR18EZPF4642 is suitable for automotive and industrial applications, including DC-DC converters, solenoid and motor drivers, industrial power supply, and more.