The XC6221B312NR is a Low Dropout Regulator (LDO) SSOT-24 RoHS manufactured by Torex Semiconductor. It is a low dropout regulator with an output voltage of 3.0V and an output current of 100mA, making it suitable for a wide range of applications such as point of load power supplies, system power and other battery-operated applications. The regulator also features an ultra-low dropout voltage of 1.2V across the full output current range, making it particularly well-suited for ultra-low voltage systems. This device is constructed using series bipolar transistors for superior line and load regulation, eliminating the need for an external reference for fine adjustment of the output voltage. The package is SSOT-24 RoHS compliant, compliant with lead-free requirements, and conforms to RoHS regulations.