XC6501B251GR-G

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Introduction to XC6501B251GR-G Linear Voltage Regulator

The XC6501B251GR-G linear voltage regulator is a low-cost, single-output voltage regulator for use in a variety of circuit designs and applications. It is a single-channel device that provides a regulated output voltage from a range of input voltages from 1.2V to 32V. It offers a wide range of adjustable output voltages from 1.5V up to 27V. The XC6501B251GR-G is capable of delivering up to 1A of output current and includes limit and thermal protection for added safety and reliability. It also includes output current monitoring via the Output Current Monitor pin, which can be used to monitor current in the system.

Application Field and Working Principle of XC6501B251GR-G Linear Voltage Regulator

XC6501B251GR-G linear voltage regulators are used in a variety of applications wherever a regulated output voltage is needed. Typical applications include DC/DC converters, power supply regulation, and power amplifier regulation. The XC6501B251GR-G can also be used for current limiting and under-voltage protection in industrial and automotive applications.

The XC6501B251GR-G utilizes a three-terminal linear regulator configuration. The input voltage is applied to the input pin and the regulated output voltage is obtained at the output pin. The third pin serves as the ground reference and is connected to the circuit common. The device features a PNP pass transistor with a high voltage Input and an adjustable Output voltage. The pass transistor is controlled by an Internal voltage reference, which is compared to a setpoint voltage derived from the adjustable Output voltage. If the Output voltage is higher than the setpoint voltage, the pass transistor is cut off and no current passes through. If the Output voltage is lower than the setpoint voltage, the pass transistor is turned on, allowing current to flow through the device. This behavior is repeated over and over again to ensure that the voltage at the output remains stable.

XC6501B251GR-G linear voltage regulators also have a built-in thermal and over-current protection circuit. The thermal protection circuit will shut down the device if it becomes too hot and the over-current protection circuit will prevent excessive current from flowing and damaging the device. In addition, the device includes an Output Current Monitor pin that can be used to measure the current through the device. This provides better understanding of the system\'s power consumption when using multiple linear voltage regulators in parallel.

Conclusion

The XC6501B251GR-G linear voltage regulator is a low-cost and reliable device for providing a regulated output voltage in a variety of applications. It has several safety features such as thermal and over-current protection, as well as current monitoring via the Output Current Monitor pin. This makes it a suitable solution for use in a range of applications including DC/DC converters, power supply regulation, and power amplifier regulation.

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