The ISL6545CBZ-T by Renesas is a Buck Regulator Positive Output Step-Down DC-DC Controller IC 8-SOIC. It is designed for applications that require high efficiency, low noise, and high gain from an adjustable output. This controller IC features a wide input voltage range, a programmable operating frequency, a fast current limit foldback, an over-temperature protection circuit, an open-drain MOSFET drive, and a differential amplifier. It has a 2.5V to 5.5V operating voltage, up to 1.2A output current capability, and a 2MHz switching frequency. This controller IC is extensively used to regulate and maintain the voltage in a wide range of systems and applications, such as LED lighting, high power servers, automotive, industrial, and consumer applications.