PQ09RD21

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PMIC - Voltage Regulators - Linear

The PQ09RD21 application field and working principle offers a wide range of output solutions in an easy-to-use voltage regulator. It is a monolithic integrated circuit, improving the performance while reducing the external components needed. It is an adaptive linear voltage regulator, providing the user with the ability to tailor the output voltage to any value within the specified voltage range.

The PQ09RD21 features a low-dropout (LDO) technology. It is well-suited for low-voltage output applications, especially where low current is needed. It works by lowering the needed input voltage to drive the output with very little power dissipation. This means that the device can operate in noisy conditions where other voltage regulators may fail due to excessive ripple or noise. The PQ09RD21 also uses current-limiting for over-current protection.

The PQ09RD21 has an adjustable output voltage, which can be set by an external resistor divider. This adjustable output voltage range is 0.4 V to 22.0 V and the typical output voltage range can be set from 1.75 V to 20.25 V. With an efficient DC/DC converter topology, the quiescent current is low and the efficiency is high. It also has built-in thermal shut down circuit, offering power saving and protecting the device.

The typical application of PQ09RD21 includes portable electronic devices, such as mobile phones and digital cameras, but its wide range of output voltage and its low quiescent current make it a great choice for a variety of applications. The PQ09RD21 can be used in various consumer electronics, like notebook computers and game consoles, as well as automotive, industrial and healthcare applications.

In conclusion, the PQ09RD21 application field and working principle offer a wide variety of advantages such as a wide range of adjustable voltage, low quiescent current, and excellent output accuracy in a very small package. It is a simple and easy-to-use linear voltage regulator ideal for most battery-powered applications.

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