The MC78M05ACDTG is a 5V, 500mA, fixed voltage positive linear voltage regulator from ON Semiconductor. It is housed in a TO-220 package and is designed for applications that require low noise, low dropout, and high current. The MC78M05ACDTG features overvoltage/reverse current protection, adjustable current limiting, thermal shutdown and soft-start. It is intended for use in applications such as mobile network devices, power supplies, battery chargers, and system protection circuits.