View mic5231 datasheet:

MIC5231 Micrel MIC5231 Micropower µCap LDO Regulator Final Information General Description Features The MIC5231 µCap low-dropout voltage regulator is intended • Extremely low quiescent current—only 0.65µA for low-output-current biasing applications. It features ex- • No output capacitor requirement tremely low ground current, not greater than 4µA under all • Stable with ceramic or tantalum capacitors load and temperature conditions, making it efficient and ideal • IttyBitty™ SOT-23-5 surface-mount package for keep-alive applications in devices such as notebook • 10mA output drive computers. • Low 150mV at 10mA dropout voltage • Tight load and line regulation The MIC5231 offers better than 2% initial accuracy and low • Low temperature coefficient dropout (typically 150mV at 10