REG711EA-5/2K5

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A REG711EA-5/2K5 is a switching regulator integrated circuit from ON Semiconductor. The device is often used to regulate the power supply in a circuit, converting it to a different voltage. It uses a synchronous rectification technique for efficient current consumption, making it suitable for use in portable devices. In this article, we will discuss the REG711EA-5/2K5\'s application fields and working principle.

Application Fields

The REG711EA-5/2K5 is a switching regulator integrated circuit. It is most commonly used to provide voltage regulation of the output of a power source. It is suitable for use in a variety of applications including battery-powered devices, portable devices, and industrial applications. The device features an integrated output voltage margining (V OVT) feature which adds improved protection in the event of a fault.

The device has an adjustable operating frequency of 100KHz-200KHz, making it suitable for use in high frequency switching applications. It also features a built-in soft-start feature to reduce inrush current and EMI noise during start-up. This can also aid in controlling inrush current when powering a high load. The device is also equipped with protection features such as overvoltage, overtemperature, and overcurrent protection.

Working Principle

The REG711EA-5/2K5 is a switching regulator integrated circuit that uses a synchronous rectification technique to convert from an unregulated input voltage to an output voltage. When the device is operating, power is drawn from the input side and then converted to alternating current (AC) with a boost converter topology. The AC voltage is then converted to direct current (DC) with a synchronous rectifier and output capacitor. The amount of energy converted and stored depends on the inductor and capacitor values used in the circuit.

The output voltage is controlled by the switching frequency and duty cycle of the internal MOSFETs. A voltage feedback loop is used to adjust the duty cycle of the switch accordingly. The operating frequency of the device is adjustable, allowing the user to optimize efficiency or control features. The device also features programmable soft start and overcurrent protection.

Conclusion

The REG711EA-5/2K5 is a switching regulator integrated circuit from ON Semiconductor. It is suitable for use in a variety of applications, including battery-powered devices, portable devices, and industrial ones. It utilizes a synchronous rectification technique for efficient current consumption, making it suitable for use in portable devices. It also feature an adjustable operating frequency, allowing users to optimize efficiency or control features. The device is also equipped with protection features such as overvoltage, overtemperature, and overcurrent protection.

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