XRP7659ISTR-F

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XRP7659ISTR-F Application Field and Working Principle

The XRP7659ISTR-F is a synchronous step-down DC to DC regulator designed specifically for mobile and portable applications, such as smartphones and tablets. It provides a high efficiency, low noise, and a small footprint design, making it an ideal solution for portable appliances. This device integrates a low-side and a high-side power MOSFET and an integrated inductor, eliminating the need for external components. The XRP7659ISTR-F is a buck regulator with a 0.9V to 9V input voltage range and an adjustable 2.5V to 7V output voltage range.

Due to its flexible output voltage range and high efficiency, the XRP7659ISTR-F can be used in many different applications, such as powering small mobile devices and portable medical devices. It can also be used in industrial and automotive applications, as it supports wide input voltages, high efficiency, and low output noise operations. Furthermore, due to its small size and low quiescent current, it can easily be integrated into space-constrained applications such as wearables and IoT devices.

The XRP7659ISTR-F provides an easy-to-use design. It has an internal voltage reference and an integrated over-temperature monitoring feature. It also includes pre-programmable programmable overtemperature protection and a cycle-by-cycle current limit. Furthermore, the device contains internal current sensing switch and integrated switching boosts, which helps to reduce the external component count and improve overall system reliability.

Working Principle

The XRP7659ISTR-F is a synchronous step-down DC to DC regulator designed to convert a 0.9V to 9V input voltage range to an adjustable 2.5V to 7V output voltage range. It works by switching the input voltage to the output voltage at a fixed frequency, determination of the switching frequency is done by the internal oscillator. The output voltage is then regulated by a feedback loop. The internal power MOSFETs are used to switch the input voltage to the output voltage.

The XRP7659ISTR-F has a low input voltage range and is able to operate at high and low input voltages without sacrificing efficiency or stability. The device includes an integrated low-side and high-side power MOSFET, which eliminates the need for external components. The integrated inductor provides quiet and low-noise operation and improves the overall efficiency of the regulator.

The XRP7659ISTR-F includes an internal current sensing switch and integrated switching boost circuitry, which helps reduce the component count and improve system reliability. The device has an internal temperature monitoring system, which protects the device from over-temperature conditions. It also supports over-voltage, under-voltage, short-circuit protection and over-current protection for added protection of the circuit.

Conclusion

The XRP7659ISTR-F is a synchronous step-down DC to DC regulator designed for mobile and portable applications. It provides a high efficiency and a small footprint design that makes it suitable for space-constrained applications. It has an adjustable 0.9V to 9V input voltage range and an adjustable 2.5V to 7V output voltage range. The device includes an internal voltage reference and an integrated over-temperature monitoring feature. It also includes pre-programmable programmable overtemperature protection and a cycle-by-cycle current limit. It is suitable for industrial, automotive and portable medical applications.

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