Use this LDO FAN2504S33X linear regulator from Fairchild Semiconductor to vary your voltage levels to your desired level. It has an overall accuracy of ±2 %. Its typical dropout voltage at current is 0.0025@100uA|0.05@50mA|0.1@100mA|0.15@150mA|0.17@200mA V. This voltage regulation device"s single output can produce a current up to 0.2 A. This will operate at a minimum voltage of 2.7 V and a maximum voltage of 6.5 V, making it easy to control the power in your circuit. With a fixed output that has a voltage of 3.3 V, this is power management at its best. A load regulation of 2% and line regulation of 0.3%/V(Typ) is necessary for providing a constant voltage level at your output. Tape and reel packaging will encase the product during shipment, ensuring safe delivery and enabling quick mounting of components. The maximum dropout voltage is 0.004@100uA|0.075@50mA|0.14@100mA|0.18@150mA|0.2@200mA V. This voltage regulation device has a minimum operating temperature of -40 °C and a maximum of 125 °C. Its polarity is positive.