The RT9553AGQW with PMIC - Supervisors WDFN-10L 3x3mm RoHS is an electronic part manufactured by Richtek that provides voltage/current regulation and overvoltage protection functions in DC-DC converters. It features a low operating current, wide input and output voltage ranges, low operating quiescent current, and internal fault detection circuitry. The package offers a 10-pin WDFN package with 3 mm x 3 mm dimensions and is RoHS-compliant. It is ideal for applications, such as LED display power supplies, battery-powered devices, analog and digital equipment, consumer and industrial electronics, and handheld wireless devices.