XC9270A083QR-G

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The XC9270A083QR-G is a DC-DC switching regulator, part of the family of voltage regulators known as PMIC (power management integrated circuits). Along with providing a wide range of input and output voltage capabilities, the XC9270A083QR-G features low power consumption and a high level of protection features for added device reliability. It is well suited for a variety of applications, from consumer electronics to automotive systems.

Application Field

The XC9270A083QR-G is ideal for applications requiring high accuracy voltage conversion in the range of 0.6V up to 15V. It is well suited to power management and step-down voltage conversion systems. It is particularly suitable for applications requiring low-noise power supply, such as audio/video equipment, mobile devices, and other consumer electronics. Another application field is automotive electronics, as the device also offers protection against overload and short circuit.

Working Principle

The XC9270A083QR-G DC-DC switching regulator works in a buck configuration. This means that the output voltage is lower than the input voltage, allowing for efficient voltage conversion and improved power dissipation. It also features internal current limit, enabling it to provide a high degree of protection for both the regulator and the attached devices.

The circuit is based on a voltage feedback loop, where a reference voltage from an internal or external source is compared to the output voltage. A feedback-based digital PWM (pulse width modulation) controller takes the place of traditional analog controls, allowing the regulator to switch between high- and low- power consumption modes and adjust the output voltage accordingly.

The device features a wide range of programmable features, most notably a soft start function which can be used to eliminate inrush currents that can cause overloading in power supplies.

The XC9270A083QR-G also has two shutdown pins which can be used to cut off the output voltage when a certain voltage level is reached, making it a suitable choice for applications requiring high-level precision voltage control.

Conclusion

The XC9270A083QR-G is a DC-DC switching regulator belonging to the family of voltage regulators known as PMIC (power management integrated circuits). It is especially suited for applications requiring a wide range of input voltages and output voltages, including consumer electronics, mobile devices, audio/video equipment, and automotive electronics. Its main advantage is its ability to provide a high level of accuracy and low-noise power supply thanks to its configuration based on a voltage feedback loop.

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