AP7361-25FGE-7

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AP7361-25FGE-7 Application Field and Working Principle

AP7361-25FGE-7 is voltage regulators that belongs to the Linear PMIC series. This voltage regulators is currently being used in various fields and have become quite popular due to its advantages which include a low dropout voltage, low total quiescent current, high efficiency, wide input voltage range and high output current capability. This article will discuss the application fields where this voltage regulator is being used and its working principle.

Applications of AP7361-25FGE-7

AP7361-25FGE-7 is regularly used as a linear regulator in various Industrial, Scientific and Medical (ISM) applications and hence can also be considered as an ideal power solution for low-noise, low-ripple, and low-temperature applications. Although the output current is relatively small (up to 1.25A), the practical output current can be increased by paralleling several such components. Due to this, it has become an ideal voltage regulator solution for applications such as semiconductor device control, power management, and power supply, etc. In addition, it can also be used in battery-powered products, cameras and optical equipment, communication, automotive electronics, portable equipment, computers and notebook computers, LCD televisions and displays.

Working Principle of AP7361-25FGE-7

The working principle of AP7361-25FGE-7 is based on a voltage-feedback structure that enables accurate voltage regulation. The output voltage is determined by the Error Amplifier (EA) output which is fed back to the output side of the regulating element. The regulating element is a series pass transistor that controls the output voltage by changing the current through its emitter resistor.

Once the output voltage reaches the set point, the EA will send a negative feedback sign to the base of the series pass transistor, which then turns off the transistor. This will decrease the current through the emitter resistor, which in turn decreases the voltage across the resistor. This is how the output voltage is regulated and hence kept at a set point.

The input voltage of AP7361-25FGE-7 lies within the range of 9V (max), which is relatively high compared to other voltage regulators in the same category. This makes them a great choice for applications where higher input voltage is required. Moreover, the output of these voltage regulators is also high with a range of 1.22V (min) to 5.3V (max). This makes these voltage regulators an ideal solution for applications where an adjustable supply voltage is required.

Benefits of AP7361-25FGE-7

The most attractive feature of AP7361-25FGE-7 is its low dropout voltage that is as low as 2.2V. This makes them an ideal choice for power management applications that require voltage regulation over a wide range of input and output voltages. As mentioned earlier, the input voltage range of these voltage regulators is quite high which makes them a great choice for applications with higher input voltage requirements.

In addition to the low dropout voltage, AP7361-25FGE-7 voltage regulators are also equipped with a low-quiescent current of 200µA. This low quiescent current ensures a highly efficient and stable power management system. This makes them an ideal choice for applications where power efficiency is an important factor. The output current capability of these regulators is also high, with a maximum output current of 1.25A that enables the design of power management systems with higher current capability.

Conclusion

AP7361-25FGE-7 is one of the most popular voltage regulators used in a variety of industrial, scientific and medical (ISM) applications. Its attractive and beneficial features such as low dropout voltage, low total quiescent current, high efficiency, wide input voltage range and high output current capability makes them an ideal choice for modern power management applications.

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