View mic5255 datasheet:

MIC5255 Micrel MIC5255 150mA Low Noise µCap CMOS LDO General Description Features The MIC5255 is an efficient, precise CMOS voltage regulator • Input voltage range: 2.7V to 6.0V optimized for ultra-low-noise applications. It offers 1% initial • Thin SOT package: 1mm height SOT-23-5 accuracy, extremely low dropout voltage (135mV at 150mA) • Ultralow output noise: 30µV(rms) and low ground current (typically 90µA). The MIC5255 pro- • Stability with ceramic output capacitors vides a very low noise output, ideal for RF applications where • Ultralow dropout: 135mV @ 150mA a clean voltage source is required. A noise bypass pin is also • High output accuracy: available for further reduction of output noise. 1.0% initial accuracy 2.0% over temperature Designed specifically for handheld