TPS7A20 Low-Dropout (LDO) Linear Regulator Texas Instruments TPS7A20 Low-Dropout (LDO) Linear Regulator can source 300mA of output current. The TPS7A20 is designed to provide low noise, high PSRR, and excellent load and line transient performance that can meet the requirements of RF and other sensitive analog circuits. Using innovative design techniques, the TPS7A20 offers an ultra-low noise performance without adding a noise bypass capacitor. The TPS7A20 also provides the advantage of low quiescent current, which can be ideal for battery-powered applications.