78M12

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78M12

IC REG LINEAR 12V 1A TO252

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Spezifikationen

Part Status Active
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 35V
Voltage - Output (Min/Fixed) 12V
Voltage Dropout (Max) 2V @ 350mA
Current - Output 1A
Current - Quiescent (Iq) 6 mA
PSRR 80dB (120Hz)
Protection Features Over Temperature, Short Circuit
Operating Temperature -20°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case TO-252-3, DPAK (2 Leads + Tab), SC-63
Supplier Device Package TO-252 (DPAK)

Übersicht

Description

The 78M12 is a voltage regulator specifically designed to provide a stable 12V output with a maximum current of 500 mA. It is part of the 78M series, which includes various fixed output voltage regulators. The device features thermal overload protection, short-circuit protection, and operates within a wide input voltage range, typically from 14V to 25V.
Its compact size and ease of use make it suitable for various applications, including power supplies for microcontrollers, sensors, and other electronic devices. The 78M12 comes in different package types, including TO-220 and surface-mount options, making it versatile for both prototyping and production.
To use the 78M12, you need to connect the input voltage to the input pin, take the regulated 12V output from the output pin, and connect the ground pin to the circuit's common ground. Proper decoupling capacitors are recommended on both input and output for stability. Overall, the 78M12 is a reliable and efficient choice for numerous electronic projects requiring a fixed 12V supply.

Features

The 78M12 is a linear voltage regulator that provides a fixed output of 12V, typically used in various electronic applications to ensure stable voltage supply. Key features include:
1. Output Current: It can deliver up to 1.0A of output current, making it suitable for moderate power demands.
2. Low Dropout Voltage: The typical dropout voltage is around 2V, allowing for efficient operation even with lower input voltages.
3. Thermal Protection: Integrated thermal shutdown to prevent damage in case of overheating.
4. Short Circuit Protection: Safeguards the device from damage due to short circuits.
5. Wide Input Voltage Range: Accepts a broad range of input voltages, typically from 14V to 30V.
6. TO-220 Package: Often available in a TO-220 package for efficient heat dissipation.
7. Low Noise: Offers low output noise, making it suitable for sensitive applications.
These features make the 78M12 a reliable choice for powering circuits requiring a stable 12V output.

Package

The 78M12 voltage regulator typically comes in a TO-220 or TO-263 package type. These packages allow for efficient heat dissipation and are designed for easy mounting on circuit boards.

Pinout

The 78M12 is a low-dropout voltage regulator that provides a fixed output voltage of 12V. It typically comes in a 3-pin package. The pin configuration is as follows:
1. Input (Vin): This pin receives the unregulated input voltage, which should be higher than 12V but within the specified range for the device.
2. Ground (GND): This pin is connected to the circuit ground and serves as a reference point for the output voltage.
3. Output (Vout): This pin delivers the regulated output voltage of 12V to the load.
The 78M12 is designed for low current applications, typically up to 500 mA, and features built-in short-circuit protection and thermal overload protection. Its low dropout voltage allows it to operate effectively with minimal input-output voltage difference, making it suitable for battery-powered devices.

Manufacturer

The 78M12 is a voltage regulator manufactured by various companies, including Texas Instruments, ON Semiconductor, and STMicroelectronics. These companies are semiconductor manufacturers that specialize in designing and producing integrated circuits, diodes, transistors, and other electronic components.
They provide essential components for various applications, including consumer electronics, automotive systems, industrial automation, and communication technologies. These manufacturers play a crucial role in the electronics supply chain and contribute to the development of innovative solutions in the tech industry. Their products are widely used in power management, signal processing, and data conversion, among other areas.

Application

The 78M12 is a voltage regulator that provides a stable output of 12V. Its application areas include powering microcontrollers, sensors, and other electronic circuits in consumer electronics, automotive systems, and industrial equipment. It is commonly used in power supply design, battery chargers, and embedded systems where a reliable voltage source is needed. The 78M12 is favored for its simplicity, low cost, and ease of use in various low to moderate current applications.

Equivalent

The equivalent products for the 78M12 voltage regulator chip include the LM7812, LM317 (adjustable), and the MC7812. These regulators provide similar output voltage and functionality, typically used for providing a fixed 12V output with low dropout voltage. Ensure to check specifications for current ratings and thermal performance when substituting.

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