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MC78XXE/LM78XXE/MC78XXAE
3-Terminal 1A Positive Voltage Regulator
Features
Description
• Output Current up to 1A
• Output Voltages of 5, 6, 8, 9, 12, 15, 18, 24V
• Thermal Overload Protection
The MC78XXE/LM78XXE/MC78XXAE 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
• Short Circuit Protection
• Output Transistor Safe Operating Area Protection
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
GND
1
D-PAK
GND
1
1. Input 2. GND 3. Output
Internal Block Digram
OUTPUT
3
INPUT
1
SERIES
PASS
ELEMENT
CURRENT
GENERATOR
SOA
PROTECTION
REFERENCE
VOLTAGE
ERROR
AMPLIFIER
STARTING
CIRCUIT
THERMAL
PROTECTION
GND
2
Rev. 1.0.0
©2003 Fairchild Semiconductor Corporation