Microchip Technology, Inc. Voltage Regulators - DC DC Switching Regulators MCP1257T-E/MF

The MCP1257T-E/MF is an inductorless charge pump DC/DC converter designed to provide a regulated output voltage of 3.3V from an input voltage range of 1.8V to 3.6V. It supports output currents up to 100 mA and features a high output voltage accuracy of ¬±3.0%. The device operates with a low output voltage ripple of 20 mV_pp and includes thermal shutdown and short circuit protection for enhanced reliability. This regulator can operate in a low-power SLEEP mode, reducing quiescent current to 0.1 ¬µA, making it suitable for battery-powered applications. The MCP1257T-E/MF also features a shutdown input compatible with 1.8V logic and incorporates soft-start circuitry to minimize inrush current. It is available in a compact 10-pin DFN package, measuring 3 mm x 3 mm, and is characterized for operation over a temperature range of -40¬8C to +125¬8C. Applications for this device include portable measurement instruments, home automation products, and biasing for PIC¬Æ MCUs. The MCP1257T-E/MF is ideal for engineers looking for a reliable and efficient voltage regulation solution in space-constrained designs.