The PJ75AL33SQ is a low dropout regulator manufactured by Pingjingsemi and packaged in SOT-89 RoHS. This device is perfect for applications that require a low dropout voltage and optimized power dissipation. It features a wide operating input voltage range of 4.5V to 28V, an adjustable output voltage, over-temperature protection, and a shutdown control pin. It is capable of supplying up to 1.5A of output current without the need for external components. Its high accuracy, fast transient response, and low noise characteristics make it an ideal choice for a wide range of both linear and switch-mode power supply applications.