The MP20049 is an ultra-low noise, low-dropout, high PSRR linear regulator. Fixed output voltage options are available between 1.2V to 4.5V with 1% accuracy while operating from a +2.3V to +6V input. It is designed to deliver up to 150mA of load current. Dropout voltage is only 60mV at full load. The MP20049 uses an internal PMOS as the pass element, which consumes 50μA supply current at no load condition and is suitable for battery-power devices. New innovative design techniques enable the MP20049 to achieve ultra-low output voltage noise of only 16µVRMS without a noise bypass capacitor. The MP20049 is designed and optimized to work with low value, low cost ceramic capacitors. It typically requires only 1µF of output capacitance for stability with any load. The MP20049 features current limit and over temperature protection and is available in a tiny 4-ball 0.8x0.8mm WLCSP package.
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