View ncp562 ncp563 datasheet:

NCP562, NCP563 80 mA CMOS Low Iq Low-Dropout Voltage Regulator This series of fixed output low-dropout linear regulators are designed for handheld communication equipment and portable battery http://onsemi.com powered applications which require low quiescent. This series features an ultra-low quiescent current of 2.5 mA. Each device contains a voltage reference unit, an error amplifier, a PMOS power 4 transistor, resistors for setting output voltage, current limit, and temperature limit protection circuits. The NCP562 series provides an enable pin for ON/OFF control. 1 The NCP562/NCP563 has been designed to be used with low cost SC82-AB (SC70-4) ceramic capacitors and requires a minimum output capacitor of 0.1 mF. SQ SUFFIX The device is housed in the micro-miniature