MPQ4420HGJ-AEC1-P

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The MPQ4420HGJ-AEC1-P is a DC-DC switching regulator, specifically a high performance synchronous step-down regulator, which is a member of PMIC – Voltage Regulators family.

A power management integrated circuit (PMIC) is a single chip that may contain multiple voltage regulators, such as low drop out (LDO) linear regulators, to monitor and manage the supply and regulation of power of a digital system. PMICs are an integral part of any microprocessor-based system and are used throughout a wide range of applications, including Internet of Things (IoT), industrial and consumer electronics, automotive, and many others. They are the interface between power sources and the end application.

The MPQ4420HGJ-AEC1-P provides efficient regulation of output voltage over a wide input voltage range. It is designed to minimize output ripple and is available in both fixed and adjustable versions. The output voltage is adjustable from 0.8 V to 6 V, with a maximum output current of 6 A. The MPQ4420HGJ-AEC1-P also provides an adjustable switching frequency from 500 to 2500 kHz, with 0.25% accuracy.

The MPQ4420HGJ-AEC1-P is pin-compatible with other DC/DC switching regulators, so it can be used as a drop-in replacement in existing designs, allowing designers to use the same board layout while upgrading the regulator to a higher performance, higher efficiency device. The device also features a low-ripple, low-noise output, and a wide input voltage range up to 48 V.

The working principle of the MPQ4420HGJ-AEC1-P can be described as follows. It starts by driving an FET switch with an internally generated clock signal. The switch is turned on and off, resulting in current pulses that induce a voltage in a ferrite inductor. The current in the inductor is given by the voltage V_in, the frequency of the switching cycles, and the magnitude of the inductance.

When the FET is switched off, the stored energy in the inductor is dumped into the output capacitor. The capacitor, which stores energy and smoothes the output voltage, is then replenished with fresh energy from the inductor. The voltage across the inductor is given by the difference between the input voltage and the output voltage, so that the output voltage can be regulated by controlling the on/off switch of the FET.

The MPQ4420HGJ-AEC1-P is suitable for a wide range of applications, such as communications, industrial, automotive, consumer, and computing applications, where efficient and low-noise power supply is required. The MPQ4420HGJ-AEC1-P operates in a wide input voltage range and provides several features such as an adjustable output voltage, output ripple control, robust protection circuitry, and a low-noise output.

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