The MC79M12CDTRKG is a negative voltage regulator from ON Semiconductor, capable of providing up to 500mA output current. It is designed for use in applications requiring fixed negative output voltages, and is packaged in the industry-standard discrete DPAK (TO-252) package. The output can be adjusted by external resistors, allowing for a range of different voltages. It features on-chip protection from over-temperature and reverse input voltage, as well as providing low output voltage noise and good instantaneous transient response. The device is suitable for use in portable electronics, medical and industrial applications.