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MC78MXX/LM78MXX

3-Terminal 0.5A Positive Voltage Regulator

Features
Output Current up to 0.5A Output Voltages of 5, 6, 8, 12, 15, 18, 24V Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area (SOA)Protection

Description
The MC78MXX/LM78MXX series of three-terminal positive regulators are available in the TO-220/D-PAK package with several fixed output voltages making it useful in a wide range of applications.
TO-220
GND

1

D-PAK

GND

1

1. Input 2. GND 3. Output

Internal Block Digram

INPUT 1

SERIES PASS ELEMENT

OUTPUT 3

CURRENT GENERATOR

SOA PROTECTION

R1

STARTING CIRCUIT

REFERENCE VOLTAGE

ERROR AMPLIFIER

R2 THERMAL PROTECTION

GND 2

Rev. 1.0.5
2002 Fairchild Semiconductor Corporation

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LM78M05 DATASHEET