onsemi Voltage Regulators - Linear FAN2509S27X

The FAN2509S27X is a linear voltage regulator from Quarktwin Technology Ltd. designed to provide a fixed output voltage of 2.7V with a maximum output current of 50 mA. It features a low dropout voltage of 50 mV at full load, ensuring efficient operation in battery-powered applications. The device consumes only 25 µA of ground current at 50 mA output, contributing to its ultra-low power consumption profile. This regulator includes an enable/shutdown control function, allowing for reduced quiescent current to less than 1 µA when disabled. It is housed in a compact SOT23-5 package, making it suitable for space-constrained designs. The FAN2509S27X also incorporates thermal protection to prevent damage from overheating and an error flag output that indicates when the output voltage falls below 95% of the nominal value, providing a diagnostic feature for fault conditions. The regulator is optimized for use with a wide variety of external capacitors, offering flexibility in capacitor selection to meet specific application requirements. It is particularly well-suited for portable devices such as cellular phones, PDAs, and laptops.