AN80L28RMS

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AN80L28RMS Application Field and Working Principle

The AN80L28RMS is a linear voltage regulator from the world-renowned PMIC (Power Management Integrated Circuit) manufacturer, Texas Instruments. This device is used in a variety of applications from automotive to consumer electronics, and it\'s our focus in this article to explore the main principles of the AN80L28RMS and its application fields.

Specifications

The AN80L28RMS is a three-terminal positive voltage regulator which can produce an output voltage of up to 28 volts. Its maximum internal current output is 100mA. Its output voltage is totally adjustable within a range of 1.3 to 26V. It has a drop-out voltage of approximately 0.2V and an a minimum load current of 0.5mA. This device also exhibits high line transient responses of 10µs with an overall accuracy ranged between ±2% and ±5%.

Application

The AN80L28RMS is capable of providing a regulated output voltage to a wide range of electronic devices. The device can be used in automotive systems, such as headlamps, instrument clusters, electronic control systems, etc. It is also suitable for consumer electronic appliances, such as audio-video systems, navigation systems, motherboards of computers, electric toys, and many other similar products which require a stable and reliable power supply.

Working Principle

The AN80L28RMS operates on the principle of a negative feedback loop, which is the same principle used in all linear voltage regulators. This circuit works like an air conditioner, with an input power connected to a resistor and the output power connected to a shunt regulator. The electricity that is switched through the resistor is then passed into the regulator, which contains a set of internal components to maintain the voltage. The shunt regulator functions as a comparator for the regulator, checking for any deviations from the desired output voltage. If the voltage drops too low or rises too high, then the regulator adjusts its internal components accordingly, to prevent the voltage from changing and ensuring a stable output power.

Conclusion

In conclusion, the AN80L28RMS is a high-quality linear voltage regulator which is ideal for a wide range of applications. Through a negative feedback loop, it ensures a stable output voltage and can handle up to 100mA of current. Its ability to provide reliable power supplies makes it a great choice for automotive and consumer electronics. This device is easy to install and maintain, which adds to its appeal as a cost-effective solution.

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