LM78M12CT/NOPB

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The LM78M12CT/NOPB is a linear voltage regulator that belongs to an integrated circuit family that is specifically designed to provide a regulated output voltage of 12 volts. This linear voltage regulator belongs to the PMIC voltage regulator family and is designed with a few of excellent features. For example, this part has a low dropout voltage of 1.3V max and it can deliver a minimum of 750mA output current capability. It also includes an integrated thermal shutdown feature as well as overload protection. The device comprises of a minimum number of external components and can also operate at ambient temperatures up to 125°C. This is perfect for applications like automotive and industrial applications.

Application Field

The LM78M12CT/NOPB linear voltage regulator is specifically designed for use in a wide range of applications including industrial and automotive applications. It is particularly useful for devices or circuits such as 12V battery charged solutions, digital cameras, general purpose power supplies and other similar applications. It is also often used as an adjustable output regulator in devices such as automotive electric water pumps as well as auxiliary power supplies.

Working Principle

The LM78M12CT/NOPB linear voltage regulator operates on the basic concept of voltage regulation. It essentially works by allowing a small voltage across the regulation terminal to be dropped directly across a pass transistor. This dropped voltage usually manifests itself as a voltage drop across the resistor, and this voltage drop essentially acts as a "bias" voltage. Voltage regulation takes place by essentially limiting the current flow to the output of the regulator, which allows the regulator to regulate the output voltage to a constant predetermined value. The amount of current is regulated by essentially adjusting the “gate” voltage to the pass transistor.

The LM78M12CT/NOPB linear voltage regulator is also designed with an overload protection feature, which means that it has an internal current limiting circuit that essentially limits the maximum current that can flow through the device. This provides additional protection from potential damages that can occur from excessive current flow. It also includes an integrated thermal shutdown feature, which is essentially a temperature sensing circuit that automatically shuts down the device if the temperature of the regulator exceeds the maximum operational temperature for the particular device.

Conclusion

Overall, the LM78M12CT/NOPB is a great choice for applications that require an adjustable 12V voltage regulator. It is a great all-purpose voltage regulator, since it is highly reliable and has excellent features such as overload protection and thermal shutdown. In addition, the LM78M12CT/NOPB is designed to work optimally in a wide range of applications, making it the perfect choice for industrial and automotive applications.

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