ATH025A0X3Z

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DC-DC converters, which convert direct current (DC) voltage from one level to another, are widely used in various fields such as electric vehicles, aerospace, and consumer electronics. Among these, ATH025A0X3Z is one of the most widely adopted DC-DC converter. This article will discuss the application field and working principle of ATH025A0X3Z.

Application Field

ATH025A0X3Z is a non-isolated block-style DC-DC converter. It is designed for point-of-load (POL) or intermediate-bus architecture (IBA) system applications. With its level shift, low dropout voltage, low on-resistance and fast switching speed, ATH025A0X3Z is ideal for applications that require high current buck (point-of-load) or boost (intermediate-bus)conversion.

The ATH025A0X3Z is designed for advanced telecom, automotive, industrial, and computer applications, where fast signal response and accurate voltage and current regulation is important. Examples of application field include transportation, power supplies for surveillance and medical applications, and voltage regulators for automotive electronics.

Working Principle

The ATH025A0X3Z DC-DC converter has a synchronous PWM rectification switching process. This process consist of two steps: first, it rectifies the input voltage to generate an output with an ON and OFF switching frequency; second, it adjusts the output voltage by changing the ON and OFF timing period.

The on-state period of the ATH025A0X3Z is characterized by a large current flow from the input voltage to the output. During this on-state period, the inductor’s current increases linearly. At the end of the on-state period, the voltage at the inductor is equal to the input voltage plus the forward voltage drop of the diode.

The off-state period of the ATH025A0X3Z is when the MOSFET turns off and the diode conducts the current to the load. During this period, the inductor’s current decreases linearly. At the end of the off-state period, the voltage at the inductor is equal to the output voltage plus the reverse voltage drop of the diode.

These On and Off switching process occurs at a frequency determined by the control loop of the ATH025A0X3Z DC-DC converter. The inductor current rises and falls linearly, and the load voltage is regulated by adjusting the On and Off times. Thus, the ATH025A0X3Z DC-DC converter is able to offer a wide range of output voltages and current even in fluctuating conditions.

Conclusion

The application field and working principle of the ATH025A0X3Z DC-DC converter has been explored. ATH025A0X3Z is suitable for a wide range of application fields, such as transportation, power supplies for surveillance and medical applications, and voltage regulators for automotive electronics. Its working principle is a synchronous PWM rectification switching process where the output voltage is regulated by adjusting the ON and OFF times of the MOSFET.

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