Microchip MIC2951-02YM-TR, 1 Low Dropout Voltage, Voltage Regulator 500mA, 5 V 8-Pin, SOIC

The Microchip Bulletproof micro power voltage regulators with very low dropout voltage (typically 40mV at light loads and 250mV at 100mA) and very low quiescent currents. The key additional features and protection offered include higher output current (150mA), positive transient protection for up to 60V (load dump), and the ability to survive an unregulated input voltage transient of -20V below ground (reverse battery). The plastic DIP and SOIC versions offer additional system functions such as programmable output voltage and logic-controlled shutdown.

Extremely tight load and line regulation
Very low temperature coefficient
Use as regulator or reference
Needs only 1.5μF for stability
Current and thermal limiting