MC7912CD2TR4

Introduction

The MC7912CD2TR4 is a two-channel linear voltage regulator manufactured by ON Semiconductor. It provides a stable output voltage up to 2.9V, with a maximum output current of 8.2A. The MC7912CD2TR4 is designed for applications where a low noise output voltage is required. It is available in a TO-220 package, making it ideal for applications with space constraints.

Application Fields

The MC7912CD2TR4 is ideal for applications where both positive and negative supply voltages are required. It can be used to provide both 5V and -5V power supplies to digital circuits, as well as power supplies for operational amplifiers and other low-noise analog circuits. It is also suitable for providing a low-ripple adjustable DC power supply for industrial systems. Additionally, it can be used as a voltage regulator for a switching power supply, providing an alternative to the standard 7805 regulator.

Working Principle

The MC7912CD2TR4 is a linear voltage regulator, meaning that it operates by passing current through an integrated resistor network. This reduces the input voltage (Vin), making it equal to the desired output voltage (Vout). The MC7912CD2TR4 features a built-in current-limiting circuit which protects it from overloads and short-circuits. The current-limiting circuit is adjustable via a potentiometer, allowing the user to set the desired current output.

Conclusion

The MC7912CD2TR4 is a two-channel linear voltage regulator designed for applications which require a low-noise output voltage. It can be used to provide both positive and negative supply voltages, as well as a low-ripple adjustable DC power supply. Its built-in current-limiting circuit provides additional protection from overloads and short-circuits. The MC7912CD2TR4 is available in a TO-220 package, making it ideal for applications with space constraints.