PQ20RX05

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PQ20RX05 voltage regulator belongs to a kind of linear voltage regulator, which is one type of power management integrated circuit (PMICs) that provides a precise output voltage for a range of output currents at a given input voltage. The PQ20RX05 voltage regulator was designed to provide a reliable, cost-effective solution for creating a precise, digitally adjustable constant voltage of up to 5.0 V. This voltage regulator is commonly used in a variety of applications, including industrial control and computing, automotive, communications, and consumer electronics.

The PQ20RX05 typically combines two or three main components (the input voltage regulator, the output voltage regulator and the digital controller) into one device. The device offers a wide input voltage range of 2.7 V - 5.5 V, and an output voltage range of 0.8 V - 5.0 V. The device also has an adjustable output voltage, whereby the user can manually adjust the output voltage level via external resistors, and a soft start feature, which provides a controlled ramp up of the output voltage to reduce in-rush current and protect against over current and over voltage.

The PQ20RX05 voltage regulator offers both short circuit protection and safe operating area protection, and also features a wide range of protection signals (active-low under voltage lockout, active-high over voltage protection, active-low thermal shutdown, and active-high power-on reset). Additionally, the device also utilizes an internal latching mechanism, which enables the user to force the device into shutdown or reset without the need for external switching. The device also incorporates an internal oscillator, which is used to control the voltage regulator’s switching frequency, allowing for the optimization of response time and maximum efficiency over a wide range of operating conditions.

In terms of operation, the PQ20RX05 voltage regulator works by using an internal low drop-out (LDO) linear regulator. It provides a constant output voltage (the output voltage is adjustable based on the values of external resistors). In order to achieve optimum efficiency and minimize power consumption, the LDO linear regulators make use of a switching technology that enables the voltage regulator to switch on-off periodically. This process helps to reduce power loss, as the voltage regulator will switch only when necessary, instead of constantly running the linear regulator.

Another feature the PQ20RX05 voltage regulator offers is output current limiting. By limiting the current drawn by the output load, the user can ensure that an over-current event will not occur, thus preventing damage to the circuitry connected to the voltage regulator. This output current can be adjusted via an external resistor.

In summary, the PQ20RX05 voltage regulator is an ideal device for providing adjustable output voltages, combined with a wide range of protection features and digital control. With its adjustable output voltage levels, current limiting and internal circuitry, the PQ20RX05 is a highly reliable, cost-effective solution for applications ranging from industrial control and computing, automotive, communications and consumer electronic markets.

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