The SPX3819M5-L-5-0 is a 500mA low noise LDO Voltage Regulator with reverse battery protection. The positive voltage regulator offers a very low ground current of 800μA at 100mA output. It has an initial tolerance of less than 1% max and a logic compatible ON/OFF switched input. This device includes a reference bypass pin for optimal low noise output performance. Its very low output temperature coefficient and also makes a superior low power voltage reference.