PQ050RDA2SZH

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PQ050RDA2SZH application field and working principleThe PQ050RDA2SZH is a low-power, low-dropout linear regulator from Panasonic capable of regulating output voltages from 2V to 5.4V. This regulator is ideal for a wide range of portable and on-board supply applications. The PQ050RDA2SZH is an step-down, linear regulator that operates by controlling a pass element between the input voltage and the output voltage. The output voltage is determined by a voltage reference and an external resistor (or array of resistors) which together set the overall regulation voltage. A feed-forward loop senses the input voltage and adjusts the output voltage accordingly. When the voltage output is higher than the reference, the pass element is turned off, reducing the current drawn from the input supply. This loop stabilizes the output voltage and minimizes supply current draw.Other features of the PQ050RDA2SZH include ultra-low quiescent current, a maximum input voltage of 6V, low dropout voltage (typically 0.08 V) and a thermal shutdown circuit. The device is packaged in a small, 8-pin TSSOP package and is compliant with the JEDEC standards for RoHS/RoHS2.The PQ050RDA2SZH is suitable for a range of applications, including portable electronics such as digital cameras, MP3 players, notebooks, netbooks and hand-held devices, as well as automotive applications such as ECUs, vehicle tracking systems and in-vehicle audio systems. The device is also well-suited for other applications, such as powering system monitoring and control circuits, IO circuits, switching back-up batteries, or charging accessories in medical and consumer electronics.Overall, the PQ050RDA2SZH is one of the most highly-rated linear voltage regulators in its class. With its wide range of features and competitive price, it is a great choice for medium- to low-power, low-dropout linear regulator applications.

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