Microchip Technology, Inc. Voltage Regulators - DC DC Switching Regulators MIC2172YN

The MIC2172YN is a DC-DC switching regulator designed for various applications, including laptop and handheld devices. It features a 1.25A internal switch with a voltage rating of 65V and operates within an input voltage range of 3V to 40V. The device utilizes current mode operation and includes internal cycle-by-cycle current limiting, which enhances its reliability in power management. This regulator is optimized for low power consumption, drawing only 7 mA of quiescent current during operation and less than 1 OºA in shutdown mode. The MIC2172YN supports external frequency synchronization and frequency trimming, making it suitable for applications requiring multiple regulators to operate from the same input supply without interference. It is available in an 8-pin plastic DIP or SOIC package and is rated for operation in ambient temperatures from -40¬8C to +85¬8C. Engineers considering this product should note its versatility in supporting various switching topologies, including step-up, step-down, inverting, and isolated configurations, which can be beneficial for diverse project requirements.