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PMIC - Voltage Reference

The LM4120IM5-2.0/NOPB is a regulator IC from the family of voltage references from Texas Instruments. It is designed to control the output voltage of 5.2V in a variety of power applications.The monitor-driven, two-terminal regulator, can be used as a precision voltage reference in various type of circuits. In such circuits, this device can provide a regulated voltage up to 5.2V with a high accuracy of ±2%.

Application Field

The LM4120IM5-2.0/NOPB is suitable for a wide range of applications. It can be used in precision power supplies, as a reference voltage for both high voltage and low voltage circuits. The device is also useful as a constant bias or a shunt regulator, when connected to a power source or load. In some cases, it can function as an adjustable voltage reference. It can also be used in circuits which require very high accuracy, thus providing the required power stability in the output voltage.

Working Principle

The LM4120IM5-2.0/NOPB consists of two components - a driver section and a monitor section. The driver section is responsible for controlling the output voltage. It is made up of two switching transistors and an error amplifier, which monitors the output voltage and regulates it by adjusting the driver current. The second component, the monitor, is used to check the output voltage and ensure that it is within the limits set by the application.If the output voltage is outside the limits, the monitor will send a signal back to the driver section, and the error amplifier will adjust the driver current in order to bring the output voltage back within the set limits.

Conclusion

In conclusion, the LM4120IM5-2.0/NOPB is a useful Voltage Reference IC and can be used in a variety of applications. Its versatile design allows it to be used as a precision voltage reference or a constant bias regulator in power supplies and circuits. The monitor-driven design provides high accuracy in the output voltage, and its two components allow the voltage to be monitored and adjusted accordingly. Its wide range of application makes it a suitable choice for many applications.

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