View mas9124-series datasheet:

DA9124.003 25 October, 2001 MAS9124 150 mA LDO Voltage Regulator IC • Low Noise: 20 µVrms • Low Minimum Output Capacitance Requirement: 0.22 µF • Excellent Ripple Rejection: 65 dB • Very Low Dropout: 70 mV • Regulator Enable/Disable Control • Stable with Low-ESR Output Capacitors DESCRIPTION MAS9124 is a low dropout voltage regulator with an The Equivalent Series Resistance (ESR) range of enable/disable pin, which allows device to be turned output capacitors that can be used with MAS9124 is off or on by pulling control to low or high. very wide. This ESR range from a few mΩ up to a Due to the low noise level of only 20 µVrms, couple of Ohms combined with no minimum output MAS9124 is suitable for sensitive circuits, e.g., in current requirement makes th