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MC78XXCT Scheda tecnica(PDF) 1 Page - Vishay Siliconix

Il numero della parte MC78XXCT
Spiegazioni elettronici  3-Terminal Fixed Positive Voltage Regulators
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Produttore elettronici  VISHAY [Vishay Siliconix]
Homepage  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

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MC78xxCT Series
Vishay Semiconductor
Document Number 74813
www.vishay.com
29-Nov-01
1
New Product
3-Terminal Fixed Positive Voltage Regulators
Description
These voltage regulators are monolithic integrated circuits
designed as fixed-voltage regulators for a wide variety of
applications including local, on-card regulation. These
regulators employ internal current limiting, thermal shut-
down, and safe-area compensation. With adequate
heatsinking the MC78xxCT can deliver output currents in
excess of 1.5 ampere.
Although designed primarily as a fixed voltage regulator,
these devices can be used with external components to
obtain adjustable voltages with currents.
Features
• Output current in excess of 1.0 ampere
• No external components required
• Internal thermal overload protection
• Internal short-circuit current limiting
• Output transistor safe-area compensation
• Output voltage offered in 2% tolerance
Mechanical Data
Case: TO-220 Package
Case outline is on the back page.
GND
Input
1
Output
3
2
Reference
Voltage
Starting
Circuit
Error
Amplifier
Current
Generator
SOA
Protection
Thermal
Protection
Series
Pass
Element
Internal Block Diagram
Output
Input
Cin
0.33
µF
MC78xx
Co
0.1
µF
Standard Application
Notes:
A common ground is required between the input and the output voltages.
The input voltage must remain typically 2.0V above the output voltage
even during the low point on the input ripple voltage.
xx = these two digits of the part number indicate output voltage.
Cin is required if regulator is located an appreciable distance from power
supply filter.
Co is not needed for stability, however, it does improve transient response.
1
2
3
MC78xxCT
TO-220AB
Pin Definition
1. Input
2. Ground
3. Output
(Heatsink/ tab
connected to pin 2)


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