MPQ4491MGRE-AEC1-Z

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MPQ4491MGRE-AEC1-Z Application Field and Working Principle

PMIC - Voltage Regulators - DC DC Switching Regulators

MPQ4491MGRE-AEC1-Z is a highly integrated DC/DC switching regulator chip from Monolithic Power Systems, Inc. The chip is optimized for driving ultra-low noise products with reduced component count and cost. It is designed to provide up to 4.9A as a standalone current sink/source and up to 2.6A as a part of a linear voltage regulator, making it a great choice for applications such as DC/DC hybrids, automotive power systems, ultra-low noise DC/DC applications and industrial power supplies, plus many more.

The MPQ4491MGRE-AEC1-Z utilizes a voltage mode control topology which is optimized for low standby current draw and ultra-low noise performance. The chip has an adjustable internal logic to enable/disable the regulator, allowing for independent power control of the 2 outputs. It also offers adjustable output voltage ranging from 0.85V to 2.2V and adjustable output current from 1.5A to 4.9A.

The operating frequency of the MPQ4491MGRE-AEC1-Z can range from 2.4MHz to 4.8MHz. This provides a wide range of output current capabilities, from 3A with the lowest frequency to up to 4.9A of peak current. The chip is also optimized for fast transient responses, requiring very low external components in order to achieve optimal performance. Additionally, it features an adjustable 150nA to 1mA load disconnect Bluetooth current sink to enable/disable the regulator.

When it comes to safety and protection, the MPQ4491MGRE-AEC1-Z offers a soft start configuration, over voltage protection, over current protection, over temperature protection and reverse current protection. This makes it ideal for applications that require high reliability, such as automotive, industrial and medical.

The MPQ4491MGRE-AEC1-Z is a versatile DC/DC switching regulator that offers a wide range of input and output voltage capabilities, ultra-low noise operation and high reliability. The chip is also optimized for low component count and cost, making it an ideal choice for many different applications.

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