MAX8805WEWEAA+T

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The MAX8805WEWEAA+T is a single-output voltage regulator in the PMIC – Voltage Regulators – Special Purpose family of regulators. It can output up to 12 VDC and a maximum of 3 Amps current. This application document focuses on the application field and working principle of the MAX8805WEWEAA+T.

Package Description

The MAX8805WEWEAA+T is provided in a 16-pin toroidal half-pitch package. It is designed to Provide Readily Accessible Output Voltages, Starting From 8 V to 12 V, With a Maximum Output Current of 3 Amps. The package is suitable for pick-and-place automation, making it easier to assemble and require minimized board-space.

Applications

The MAX8805WEWEAA+T is designed for automotive and industrial applications. Expertly designed for wide temperature range (-40°C to +105°C), it provides excellent reliability and superior performance for game consoles, digital projectors, and general-purpose power regulation. The compatibility with global standards for power develops makes it suitable for use in various external applications like telecommunication, computer, and battery charger equipment.

The MAX8805WEWEAA+T is specifically suitable for point-of-load applications, where a low ripple and high efficiency regulator is required. The device has overvoltage and short-circuit protection, making it suitable for use in situations where stability and control are of importance. It offers fast transient response, making it suitable for applications when high-accuracy dynamic waveforms of the regulated output voltages needed.

Working Principle

The MAX8805WEWEAA+T works by controlling an adjustable switching regulator and then regulating the output voltage with a pulse-width modulation (PWM) control. The device switches the output voltage using on and off times that range from 10-90%. This is done by using a low-ripple technique, where the output voltage is regulated by both the peak and the integrated waveforms. The pulse-width modulated waveform is used to ensure the accuracy of the output voltage over time and temperature.

The adjustable switching regulator allows the user to select the required output voltage and current, meaning that the user can choose the output voltage and current rating or the voltage and current ratings that are compatible with the connected output device. The switching regulator also allows for rapid and precise switching between the load current limit and the output voltage, providing precise and efficient regulation.

The MAX8805WEWEAA+T has an adjustable internal current-limit circuit, which allows regulated output currents up to 3 Amps with two selectable settings: 400 mA and 3 A. The device is equipped with an external temperature compensation loop, which provides a precise setting and accurate temperature-sensing.

The MAX8805WEWEAA+T is designed for easy implementation, with a minimum of external components. There is no need for external capacitors, making the device simple to set up whilst providing reliable and precise regulation. The external circuit provides an additional safeguard against transients and overvoltage.

Conclusion

The MAX8805WEWEAA+T is an incredibly versatile and high-performance voltage regulator in the PMIC – Voltage Regulators – Special Purpose family. It provides a highly adjustable, efficient, and stable output voltage, suitable for applications in automotive and industrial settings. Constructed with advanced techniques and a highly functional circuit, it is able to compete with comparable products and provide reliable and protected performance.

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