The CS8221 is a precision 5 V, 100 mA micropower voltage regulator with very low quiescent current (60 uA typical at 100 uA load). The 5V output is accurate within +/-2% and supplies 100 mA of load current with a maximum dropout voltage of only 600 mV. The regulator is protected against reverse battery, short circuit, over voltage, and over temperature conditions. The device can withstand 74 V load dump transients making it suitable for use in automotive environments. The CS8221 is pin for pin compatible with the LM2931.