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MC78T12A

ON
Part Number MC78T12A
Manufacturer ON
Description 3.0A Positive Voltage Regulators
Published Oct 5, 2022
Detailed Description MC78T00 Series 3.0 A Positive Voltage Regulators This family of fixed voltage regulators are monolithic integrated circ...
Datasheet PDF File MC78T12A PDF File

MC78T12A
MC78T12A

Overview
MC78T00 Series 3.
0 A Positive Voltage Regulators This family of fixed voltage regulators are monolithic integrated circuits capable of driving loads in excess of 3.
0 A.
These three−terminal regulators employ internal current limiting, thermal shutdown, and safe−area compensation.
Devices are available with improved specifications, including a 2% output voltage tolerance, on AC−suffix 5.
0 V, 12 V and 15 V device types.
Although designed primarily as a fixed voltage regulator, these devices can be used with external components to obtain adjustable voltages and currents.
This series of devices can be used with a series−pass transistor to supply up to 15 A at the nominal output voltage.
• Output Current in Excess of 3.
0 A • Power Dissipation: 25 W • No External Components Required • Output Voltage Offered in 2% and 4% Tolerance* • Thermal Regulation is Specified • Internal Thermal Overload Protection • Internal Short Circuit Current Limiting • Output Transistor Safe−Area Compensation • Pb−Free Packages are Available Input Cin* 0.
33 mF MC78TXX Output CO** Figure 1.
Simplified Application A common ground is required between the input and the output voltages.
The input voltage must remain typically 2.
2 V above the output voltage even during the low point on the input ripple voltage.
XX these two digits of the type number indicate voltage.
** Cin is required if regulator is located an appreciable distance from power supply filter.
** (See Applications Information for details.
) ** CO is not needed for stability; however, it does improve transient response.
http://onsemi.
com 3A POSITIVE FIXED VOLTAGE REGULATORS MARKING DIAGRAMS TO−220 T SUFFIX CASE 221A MC 78TxxyzT AWLYWW 1 2 3 Pin 1.
Input 2.
Ground* 3.
Output *Heatsink surface is connected to Pin 2.
D2PAK−3 CASE 936 MC 78TxxyzD2T AWLYWW MC = Specific Device Code xx = Voltage Option y = “A” letter for precise 2% regulators, not used for standard 4% regulators.
z = temperature range, “B” for wide temperature ran...


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