MC7812A Fairchild 3-Terminal 1A Positive Voltage Regulator Data Sheet
Download PDF datasheet for Fairchild Semiconductor MC7812A 3-Terminal 1A Positive Voltage Regulator (EN) 28 pages Rev.1.0.0 2001 zip
Description
This PDF datasheet is for the Fairchild MC7812A Voltage Regulator.
Fairchild Semiconductor MC7812A 3-Terminal 12V 1A Positive Voltage Regulator
FEATURES
– Output Current up to 1A
– Thermal Overload Protection
– Short Circuit Protection
– Output Transistor Safe Operating Area Protection
The 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.
(PDF) DATASHEET (ENGLISH)
CONTENTS
MC7812A PINOUT
INTERNAL BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
– Input Voltage
– Thermal Resistance
– Operating Temperature Range
– Storage Temperature Range
ELECTRICAL CHARACTERISTICS
– Output Voltage
– Line Regulation
– Load Regulation
– Quiescent Current
– Quiescent Current Change
– Output Voltage Drift
– Output Noise Voltage
– Ripple Rejection
– Dropout Voltage
– Output Resistance
– Short Circuit Current
– Peak Current
TYPICAL PERFOMANCE CHARACTERISTICS
Figure 1. Quiescent Current
Figure 2. Peak Output Current
Figure 3. Output Voltage
Figure 4. Quiescent Current
Figure 5. DC Parameters
Figure 6. Load Regulation
Figure 7. Ripple Rejection
Figure 8. Fixed Output Regulator
Figure 9. Constant Current Regulator
Figure 10. Circuit for Increasing Output Voltage
Figure 11. Adjustable Output Regulator
Figure 12. High Current Voltage Regulator
Figure 13. High Output Current with Short Circuit Protection
Figure 14. Tracking Voltage Regulator
Figure 15. Split Power Supply
Figure 16. Negative Output Voltage Circuit
Figure 17. Switching Regulator
MECHANICAL DIMENSIONS: TO-220 / D-PAK
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