MAX14720AEWA+T

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The MAX14720AEWA+T is a power management integrated circuit (PMIC) that combines a linear regulator with a switching regulator. This PMIC is often used in applications that require high voltage accuracy, low noise, and high efficiency. This article will discuss the application fields and the working principle of the MAX14720AEWA+T.

Application Fields

The MAX14720AEWA+T PMIC is commonly used in high-end mobile devices, such as smartphones. The linear regulator of the MAX14720AEWA+T provides high voltage accuracy, which is better than the accuracy of traditional linear regulators. The switching regulator provides high efficiency, which saves power and reduces heat output. The low noise operation ensures undisturbed audio and video performance.The MAX14720AEWA+T is also used in many automotive applications, such as CAN/LIN bus systems, LiDAR systems, human-machine interfaces (HMIs), and fuel cell systems. The high voltage accuracy of linear regulator ensures reliable operation in automotive environments, while the switching regulator provides high efficiency and low noise. The high integration of the MAX14720AEWA+T also reduces the part count and board space in automotive applications.

Working Principle

The MAX14720AEWA+T consists of two main components, the linear regulator and the switching regulator. The linear regulator is a voltage source that provides a constant voltage output with low voltage noise. The switching regulator acts as a DC/DC converter with high efficiency. The linear regulator consists of an input voltage feedback loop, an output voltage feedback loop, and a voltage reference circuit. The input voltage feedback loop compares the input voltage to the reference voltage, and adjusts the output of the regulator accordingly. The output voltage feedback loop compares the output voltage to the reference voltage, and controls the output of the voltage reference circuit. The output of the voltage reference circuit is used to adjust the output voltage of the linear regulator. The switching regulator consists of an AC voltage input, a DC voltage output, and a switching controller. The AC voltage is converted to a DC voltage by switching the AC voltage on and off. The switching controller regulates the switching frequency and duty cycle of the AC voltage to control the output voltage. The MAX14720AEWA+T also has integrated protection features, such as thermal shutdown, current overload, over voltage protection, and short circuit protection. These protection features provide robust protection against short circuit, overload, and over temperature conditions.

Conclusion

The MAX14720AEWA+T PMIC is a versatile and reliable power management solution for a variety of applications. It combines a linear regulator with a switching regulator to provide high voltage accuracy, low voltage noise, high efficiency, and integrated protection features. The MAX14720AEWA+T is suitable for applications such as automotive and high-end mobile devices.

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