型号: 78M05
厂商: Fairchild Semiconductor Fairchild Semiconductor
描述: 3-terminal 0.5A positive voltage regulator
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www.fairchildsemi.com  
MC78MXX/LM78MXX  
3-Terminal 0.5A Positive Voltage Regulator  
Features  
Description  
• Output Current up to 0.5A  
• Output Voltages of 5, 6, 8, 12, 15, 18, 24V  
• Thermal Overload Protection  
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.  
• Short Circuit Protection  
• Output Transistor Safe Operating Area (SOA)Protection  
TO-220  
GND  
1
D-PAK  
GND  
1
1. Input 2. GND 3. Output  
Internal Block Digram  
INPUT  
1
OUTPUT  
3
SERIES  
PASS  
ELEMENT  
SOA  
PROTECTION  
CURRENT  
GENERATOR  
R1  
REFERENCE  
STARTING  
ERROR  
AMPLIFIER  
VOLTAGE  
CIRCUIT  
R2  
THERMAL  
PROTECTION  
GND  
2
Rev. 1.0.5  
©2002 Fairchild Semiconductor Corporation