Torex Semiconductor, Ltd. Voltage Regulators - DC DC Switching Regulators XC9265A39B4R-G

The XC9265A39B4R-G is an ultra-low power synchronous step-down DC/DC converter designed for efficiency in battery-operated devices. It operates within an input voltage range of 2.0V to 6.0V and provides a fixed output voltage of 3.9V with an accuracy of ±2.0%. The device can deliver an output current of up to 200mA and features a low quiescent current of 0.50OºA at 1.8V output, making it suitable for applications requiring long battery life. This regulator utilizes pulse frequency modulation (PFM) control, which enhances efficiency during low load conditions. It includes built-in functions such as under-voltage lockout (UVLO) to protect against low input voltage conditions and a CL discharge feature for rapid output voltage restoration during standby mode. The XC9265A39B4R-G is compatible with ceramic capacitors, simplifying the external component requirements to just an inductor and input/output capacitors. Operating temperature ranges from -40°C to 85°C, and the product is available in SOT-25 and USP-6EL packages, compliant with EU RoHS standards. This makes it a viable choice for applications in wearable devices, smart meters, Bluetooth units, energy harvesting devices, and portable game consoles.