MAX5068FAUE

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The MAX5068FAUE is an advanced PMIC (power management integrated circuit) designed to provide voltage regulation and supply control for advanced mobile, computing and other high-powered equipment. This powerful, highly integrated circuit provides a wide range of functions including adjustable output, synchronous rectification, burst mode operation and frequency jittering to help reduce audtibility. It also features wide range of commonly used features that are not found in many basic solutions such as a low quiescent current, allowing less power consumption in standby mode. Additionally, a configurable over temperature and output sensing makes it suitable for harsh industrial environment.

Applications

The MAX5068FAUE is suitable for a broad range of electronic applications as it can regulate a wide voltage range and is capable of driving various loads. It offers excellent power conversion efficiency and high power device protection and hence can be used in applications such as mobile computing, flat panel displays and digital converters, as well as other PC applications. Additionally, with its high switching frequency, the device can also be used for motor and HVAC drives and high power battery charging.

Working Principle

The MAX5068FAUE is a voltage regulator and DC-DC switching controller device that employs synchronous rectification technology to deliver high power conversion efficiency. This device combines two high-speed integrated power switches, one directly connected to the power supply and the other connected to the load via a feedback network. The MAX5068FAUE uses current mode control for fast line/load regulation and active voltage positioning for tracking the setpoint accurately. The flexible pulse width modulation (PWM) mode allows operation up to a frequency of 2MHz enabling fast transient response with minimal output voltage overshoot. The integrated under-voltage lockout (UVLO) ensures proper operation of the power supply under varying supply conditions. Furthermore, this device incorporates an adjustable soft-start to limit inrush current and an internal protection circuit that prevents output overvoltage and overtemperature conditions.

Conclusion

The MAX5068FAUE is a high-performance DC-DC switching controller and voltage regulator PMIC that offers excellent protection and power conversion efficiency in a wide range of applications. Its support for frequency jittering and burst modes, low quiescent current and built-in over temperature and output sensing features make it an ideal solution for harsh industrial applications. The device’s ability to drive a variety of loads at high frequency makes it suitable for motor, HVAC drives and high power battery charging applications.

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