Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

DC DC Converters

The ALQ25A48N is a type of DC-DC converter which provides a high level of accuracy and reliability in power conversion applications. It is a two-phase synchronous boost converter, which is capable of providing a regulated output voltage from a relatively lower voltage input.

Application Field

The ALQ25A48N DC-DC converter has several potential applications due to its wide input and output voltage range. It can function as a step-down converter for isolated DC/DC applications in consumer electronics such as laptops, tablets, and mobile phones. It can also serve as a boost converter in automotive power electronics, telecom, industrial, and military applications. Its high efficiency and excellent line and load regulation make it a reliable power source in various applications.

Working Principle

The ALQ25A48N DC-DC converter is a two-phase synchronous boost converter that uses two switching stages (an inverting stage and a non-inverting stage) to obtain a regulated output voltage. It operates in a pulse-width modulation (PWM) mode with the two switching stages being controlled by a central control loop and pulse width modulation (PWM) comparator.

The non-inverting stage is driven by an On-Time (OT) signal and an Off-Time (OFF) signal generated from the PWM comparator, while the inverting stage is driven by an invOT signal and an invOFF signal. These timing signals are used to charge and discharge a control capacitor, which produces the output voltage. The output voltage is then regulated by adjusting the On-Time signal or Off-Time signal.

The ALQ25A48N DC-DC converter also includes protections against over-temperature, over-current, and over-voltage conditions, providing an extra layer of security in sensitive applications.

Conclusion

The ALQ25A48N DC-DC converter is a reliable and efficient two-phase boost converter that can provide a regulated output voltage from a relatively lower voltage input. Its wide input and output voltage range and excellent line and load regulation capabilities make it well-suited for a variety of power conversion applications. The additional protections against over-temperature, over-current, and over-voltage conditions give the converter an extra layer of security in sensitive applications.

The specific data is subject to PDF, and the above content is for reference