The MC7805ACD2TR4G is a positive voltage regulator manufactured by ON Semiconductor. It is an adjustable three-terminal, linear voltage regulator designed to operate from an input voltage of up to 35 V with a fixed output voltage of 5 V and a maximum load current of 1 A. It features an on-chip, over-temperature shutdown for safety and can be used for a variety of applications, such as power supplies, motor controllers, and instrumentation. The device also reduces EMI/RFI emissions by providing low output impedance and low noise. It is available in a Pb-free, 4-pin SOT-223 package.