XILINXPWR-081

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Evaluation Boards - Linear Voltage Regulators

Linear voltage regulators have been widely used in many industrial applications over the years with their simple functionality and highly reliable performance. One such device is the XILINXPWR-081 regulator, a relatively mature product in this field. This article aims to discuss the application field and working principle of the XILINXPWR-081.

Applications of XILINXPWR-081

The XILINXPWR-081 has a wide range of applications in both industry and consumer electronics. It is most commonly used in microprocessor-based, general-purpose computing circuits that require precise and stable voltage for onboard components. The device is also used as a voltage regulator for mobile phones, notebooks, automotive electronics, IOT devices, and other related products.

Given its flexible input voltage range, up to 3.3V to 33V, the XILINXPWR-081 can be used in various battery power applications, like smart vehicle, robot, and surveillance systems. With its maximum load up to 2A and low dropout of 300mV, it can provide powerful and reliable power supply for devices with demanding power requirements. Moreover, the device also has overload, overheat, and short-circuit protection, making it suitable for many other safety-critical applications as well.

Working Principle of XILINXPWR-081

The XILINXPWR-081 is a linear voltage regulator that follows the conventional buck/boost switching topology. It works by regulating a dedicated voltage source, typically a control voltage, to the intended output voltage, through the internal buck/boost regulator and wide range of resistors integrated.

Under normal circumstances, the input voltage applied to the device is steady and thus requires only one regulator to provide the stable output voltage and current. However, if the input voltage is fluctuating due to external conditions, such as working temperature or power source, the device will adjust the internal switching operation to maintain the output voltage at the required level.

In addition, the XILINXPWR-081 is capable of providing a precisely regulated output voltage even under extreme conditions, such as when the input voltage is suddenly increased or decreased. This is done by providing an active feedback loop that continuously compare the reference voltage on the output side with the required set voltage from the input side. If the current output is higher than the set voltage, the feedback circuit will then decrease the duty cycle of the internal switching circuit. Otherwise, the feedback loop will increase the duty cycle to compensate for the decrease in input voltage.

Conclusion

The XILINXPWR-081 linear voltage regulator is a mature and highly reliable device that has a wide application range across various industries and electronics. Its wide input voltage range, up to 3.3V to 33V, and high output current of 2A make it suitable for applications with high power requirements, while its active feedback loop and overload, overheat, and short-circuit protection make it an excellent choice for safety-critical applications.

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