The PJ73AL33SQ is a low dropout regulator (LDO) SOT-89 RoHS manufactured by Pingjingsemi and is ideal for providing precision regulated output and stable voltage for both CMOS and BiCMOS integrated circuits (ICs). It features a wide range of input and output voltage ranges, operating from two to three volts, and delivers excellent ripple rejection and fast transient response with low noise operation. This LDO regulates voltage and current up to 600mA and is protected against over-current by an in-built current limiting circuit. It also comes with a thermal protection from overheating. In addition, its RoHS compliant design makes it an environmentally friendly choice.