Microchip MIC5209-4.2YS Low Noise LDO, Voltage Regulator 500mA, 4.2 V 3-Pin, SOT-223

The Microchip efficient linear voltage regulator with very low dropout voltage, typically 10 mV at light loads and less than 500 mV at full load, with better than 1% output voltage accuracy. Designed especially for hand-held, battery-powered devices, the MIC5209 features low ground current to help prolong battery life. It is available in adjustable or fixed output voltages.

Output voltage range 1.8 Vto 15 V
Meets Intel® slot 1 and slot 2 requirements
Guaranteed 500 mA output over the full operating temperature range
Low 500 mV maximum dropout voltage at full load
Extremely tight load and line regulation
Thermally efficient surface mount package
Low temperature coefficient
Current and thermal limiting
Reversed battery protection
No load stability
1 % Output accuracy