The PJ73AL30SQ from Pingjingsemi is a three-terminal low-dropout linear regulator (LDO) packaged in a SOT-89 RoHS package. This regulator has low-noise, temperature-stable, low-dropout voltage and current-limiting features, making it suitable for a wide range of applications including power-supply regulation, portable electronics, digital displays, cell phones, etc. It is ideal for supplying loads that may vary in current or voltage requirements. It also features fast transient response, very low output voltage ripple, and low quiescent current temperature tracking. The PJ73AL30SQ is RoHS compliant, making it an environmentally friendly and safe choice for a variety of applications.