PQ3DZ53

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PMIC (Power Management Integrated Circuits) Voltage Regulators are an integral component used for controlling the power system in a variety of electronic applications. Among these, Linear Voltage Regulators form an essential part due to their long-term reliability, high efficiency and low cost. An example of a linear voltage regulator is the PQ3DZ53 series of devices manufactured by Power-One.

The PQ3DZ53 series is a low dropout (LDO) regulator designed to provide stable and accurate output voltage regulation between input voltage and output voltage. It is capable of operating any load current up to 3A continuously in the input range of 3.9V to 20V and output range of 0.7V to 17V. In addition, the device features short-circuit and over-temperature protection to provide reliability and safety.

Its primary application field is in mobile phones, mobile appliances, and consumer electronics due to their low quiescent current. This series of voltage regulator is also used in automotive, communications, computers, and office automation systems.

The working principle of the PQ3DZ53 series is simpler compared to other linear regulators as it does not use a sensing transistor and feedback loop to adjust the output voltage. Instead, it utilizes a special architecture which allows the transit time of the voltage regulator to vary according to the load, which results in better efficiency and lower noise.

The PQ3DZ53 series is equipped with a band-gap reference, which ensures exceptional accuracy and provides ultra-stable operation with excellent line and load regulation. The device also features a low output noise, low drop-out voltage as well as very low temperature coefficient.

The PQ3DZ53 series offers superior performance characteristics and is preferred in many applications. Its features make it suitable to use in areas such as industrial controls, medical devices, point-of-load converters, portable electronics and many more.

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