PQ1X291M2ZPH

PMIC - Voltage Regulators - Linear

The PQ1X291M2ZPH is a part of the Linear Voltage Regulators from PMIC (Power Management ICs) family. Voltage regulators are electronic circuits that maintain a constant output voltage by regulating the input voltage with respect to the changes in the output current.

Unlike other components of PMIC, the voltage regulator does not store power, but rather dissipates it. The voltage regulator adjusts its output voltage to maintain a constant output, regardless of fluctuations in the input. Voltage regulation can be achieved by either controlling the current or controlling the voltage. In the case of the PQ1X291M2ZPH, voltage regulation is done by controlling the current.

The PQ1X291M2ZPH is a single chip linear voltage regulator that can provide both positive and negative outputs of up to 2A. It features a quiescent current of only 2mA at 5V, providing efficient and stable power regulation in a compact package. The chip also comes with a low dropout voltage of only 0.5V, making it suitable for applications requiring a low-power supply. The chip can be used in a wide range of voltage regulation applications such as motor control, LED lighting, digital audio, switching power supplies, and system power supply.

In terms of its working principle, the PQ1X291M2ZPH uses an internal regulator that uses a series of resistors and diodes to control its output voltage. The regulator detects the dropout voltage between its input and output, and then adjusts its series of resistors to limit the current through the regulator, maintaining the desired output voltage. The output voltage can be adjusted via an external pin that is connected to a voltage divider network. The voltage divider network is used to set the desired output voltage.

The PQ1X291M2ZPH is a highly reliable voltage regulator and is suitable for a wide range of applications. It is capable of providing precise output regulation in a very small package, making it ideal for applications requiring low-power switching or motor control. The regulator also features an extremely low quiescent current, a low dropout voltage, and excellent thermal performance, making it ideal for use in portable devices or environments with limited airflow.