MPQ4420GJ-Z

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Voltage Regulators - DC DC Switching Regulators, MPQ4420GJ-Z

A DC/DC switching regulator is a type of voltage regulator that takes power from one DC source and a control signal, and outputs a regulated DC signal. It is a highly efficient form of power conversion typically used in battery-powered electronics such as cell phones and other portable devices. The MPQ4420GJ-Z is a high-efficiency, low-noise, hysteretic, synchronous buck switching regulator targeted at space-constrained, small form-factor designs.

Application

The MPQ4420GJ-Z is a versatile DC/DC switching regulator suitable for a wide range of applications, from distributed power supply systems to embedded system designs. It is designed to operate from 4 V to 50 V and from 0.75 A to 10 A, giving it a wide range of flexible configurations. Additionally, this voltage regulator offers a variety of features, such as shutdown and flex functionality settings, pre-bias startup, and under-voltage protection.

Due to its versatility, the MPQ4420GJ-Z is used in a wide range of applications, including telecommunications, embedded systems, automotive electronics, and test and measurement equipment. It can be used in distributed power systems to provide low-noise power supplies with adjustable voltage and current regulation. It can also be used in industrial applications, such as Battery Management Systems and Inverters. It can be used in medical systems, and can be used in motor control applications.

Working Principle

The MPQ4420GJ-Z is a hysteretic synchronous buck switching regulator that uses a closed loop to regulate the output voltage. It uses an internal voltage reference to maintain a constant output voltage in the presence of varying load currents and input voltages. The inner control loop senses the output voltage and adjusts the duty cycle of the switch accordingly, to ensure the output voltage is maintained at the reference level.

The MPQ4420GJ-Z employs a matched current mode-controlled buck switching regulator with a hysteretic reference voltage. This allows it to respond quickly to changing load and power supply conditions, increasing output voltage accuracy and transient response. It also allows for fast start-up from a pre-bias startup, as well as flexibility in its operating conditions.

The MPQ4420GJ-Z also features an integrated diagnostic feedback circuit that monitors the output voltage, current and temperature. This feedback can be used to provide protection in the event of an overload, over-temperature, or under-voltage condition, preventing damage to the system components or other connected devices.

In addition, the MPQ4420GJ-Z offers an integrated frequency jittering feature that reduces noise and ripple caused by electromagnetic interference. This also improves system efficiency, allowing the system to run cooler and quieter. This feature makes the MPQ4420GJ-Z a great choice for applications in challenging environments, such as harsh industrial and automotive environments.

Conclusion

The MPQ4420GJ-Z is a high-efficiency, low-noise, hysteretic, synchronous buck switching regulator from a voltage regulator. It is ideal for distributed power systems and embedded system designs due to its range of features, such as shutdown and flex functionality settings, pre-bias startup, and under-voltage protection. It is also used in other applications such as telecommunications, automotive electronics, and test and measurement equipment. It has an integrated diagnostic feedback circuit that monitors the output voltage, current and temperature, and also features an integrated frequency jittering feature that reduces EMI noise and improves system efficiency. Overall, the MPQ4420GJ-Z is a great choice for applications in challenging environments.

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