MC78M20CTG - 

MC78M00/MC78M00A Linear voltage regulator, ON Semiconductor
The ON Semiconductor MC78M00/MC78M00A linear voltage regulator is a robust device that combines Internal current limiting, thermal shutdown and output transistor safe operating area protection. It can be used in many applications including local, on-card voltage regulation. Available in 5 V, 8 V, 12 V, 15 V, 18 V, 20 V and 24 V with an output current of up to 500 mA with used with a suitable heat sink.