www.fairchildsemi.com
Features
• Output Current up to 1A            
• Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V    
• Thermal Overload Protection     
• Short Circuit Protection
• Output Transistor Safe Operating Area Protection 
Description
The MC78XX/LM78XX/MC78XXA series of three 
terminal positive  regulators are  available  in the 
TO-220/D-PAK package and with several fixed output 
voltages,  making them useful in a wide range of 
applications. Each type employs internal current limiting,
thermal shut down and safe operating area protection, 
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 be used with external components to
obtain adjustable voltages and currents.
TO-220
D-PAK
1. Input 2. GND 3. Output
1
1
Internal Block Digram
MC78XX/LM78XX/MC78XXA
3-Terminal 1A Positive Voltage Regulator
AVR245  harman/kardon