View mc7805 datasheet:

www.fairchildsemi.com MC78XX/LM78XX 3-terminal 1A positive voltage regulator Features Description • Output Current up to 1A The MC78XX/LM78XX series of three-terminal positive • Output Voltages of 5, 6, 8, 9, 10, 11, 12, 15, 18, 24V regulators are available in the TO-220/D-PAK package and • Thermal Overload Protection with several fixed output voltages, making them useful in a • Short Circuit Protection wide range of applications. Each type employs internal cur- • Output Transistor Safe Operating area Protection rent limiting, thermal shut-down and safe operating area pro- tection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can b