PQ025EH01ZPH Integrated Circuits (ICs)

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PQ025EH01ZPH is a Voltage Regulator – Linear PMIC (Power Management IC) that provides the static power regulation to the power supply system. It is specially designed to provide a stable output voltage with tight regulation, low ripple and minimal noise. This versatile IC offer a wide range of output voltages, from 1.2V to 2.5V, and includes current limiting and thermal shutdown for protection against overload, making them ideal for use in space constrained applications.

PQ025EH01ZPH is used in a wide variety of application areas, such as laptops, desktop computers, mobile hardware, industrial equipment, embedded applications and automotive applications. It is also suitable for use in motor drives and instrumentation where low output noise is required.

The PQ025EH01ZPH consists of an internal bandgap voltage reference, an error amplifier, a P-channel power MOSFET, and current-sense resistors for overload protection. The device is able to produce output voltages of up to 2.5V in response to an external voltage reference.

Its working principle is very simple. The external voltage reference is compared to the internal bandgap voltage reference. The voltage difference between these two references is used by the error amplifier to control the gate voltage of the P-channel MOSFET, thus controlling the output voltage of the regulator.

The PQ025EH01ZPH is designed such that it provides very tight output voltage regulation. This is accomplished by monitoring the output voltage with an internal voltage feedback loop. The voltage feedback loop has a compensation network that works with the current-sense resistors to adjust the amount of current that flows through the P-channel MOSFET, thus balancing the output voltage in response to external changes.

The PQ025EH01ZPH also has in-built over-current and thermal protection. An internal current-sense circuit monitors the current in the output MOSFET and limits current when it exceeds the device’s threshold. This prevents damage to the IC due to excessive current. The thermal protection feature prevents excessive heat accumulation within the IC by controlling the gate voltage of the output MOSFET.

Overall, the PQ025EH01ZPH is a powerful and adaptive Voltage Regulator - Linear PMIC that is capable of providing stable, low-noise output voltages. Its wide range of available outputs, low ripple and tight regulation makes it suitable for many different applications.

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