The RS3219-3.3YF5 is a 5-pin Low Dropout Regulator (LDO) manufactured by RUNIC. It is a SOT23-5 RoHS package designed to regulate power input and output in low-power applications. The device is capable of supplying up to 200mA of continuous output current, providing excellent line and load regulation with a maximum 3.3V output voltage. It offers temperature drive stability of 0.8%/V, a ground current of 3.3 mA, and a dropout voltage of 500mV at 200mA. The device also features noise optimization with a feedback voltage of 1.226V. Other features include devices with varying output voltage, internally compensated, shutdown current less than 0.1µA, and reverse current protection.