PQ1LAX95MSPQ

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A PMIC-LVR, or linear voltage regulator, is one of the most common types of voltage regulators. It is usually used in low-power applications, such as with portable computers, consumer electronics and even automotive applications. In this article, I will discuss the application field and working principle of the PQ1LAX95MSPQ.

As previously mentioned, the PQ1LAX95MSPQ is a low-power linear voltage regulator. It is equipped with a high-accuracy, low-dropout voltage reference that can provide a regulated output voltage with less than 0.5% error. The adjustable voltage range of this regulator is 0.9 V to 2.7 V, and it can support an output current of 130mA. The minimum dropout voltage at full load is 250 mV, making it suitable for low-voltage applications. In addition to the voltage regulation function, it also features a power Good function, which indicates when the output voltage has reached the correct level.

In terms of applications, the PQ1LAX95MSPQ is ideal for applications such as portable computers, embedded controllers, point-of-load converters, battery management systems and LCD/LED backlight drivers. The small package and low dropout voltage make it suitable for space-constrained designs, while the low power losses minimize heat generation. The PQ1LAX95MSPQ also features a low noise operation, making it well-suited for audio applications.

The PQ1LAX95MSPQ works by maintaining the output voltage based on the reference voltage established by the on-chip reference voltage. This reference voltage is then compared to the voltage applied at the Feedback Input, and the resulting voltage error is accepted by a voltage comparison circuit. This circuit then adjusts the output of the Pass Transistor in order to maintain a constant voltage. The output voltage is determined by the voltage at the Feedback Input, which is connected to the output, so that the loop is closed.

The PQ1LAX95MSPQ is an excellent choice for low-power applications due to its high accuracy, low dropout voltage and adjustable voltage range. It is well-suited for space-constrained designs, and its low noise operation makes it suitable for audio applications. Furthermore, its power Good function helps ensure that the voltage is maintained correctly.

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