NCV47710PDAJR2G

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NCV47710PDAJR2G Application Field and Working Principle

NCV47710PDAJR2G, a low-quiescent current linear regulator from ON Semiconductor, is primarily developed for low-power designs such as Wearable Electronics, IoT, Automotive and Industrial applications. It plays a vital role in generating a fixed output voltage in spite of varying input voltage, load and ambient temperatures, making it extremely reliable and efficient.

This device is classified under the category of PMIC (Power Management IC) and voltage regulators, in the family of Linear Regulators.

The NCV47710PDAJR2G regulator is capable to withstand an operating temperature range from -40°C to +125°C, with a typical quiescent current of 22µA while also having a fixed output voltage of 3.3V. With that said, it is also capable of delivering strong continuous current of up to 200mA, which is more than sufficient for many power-hungry applications.

Working Principle:

Linear regulators are electronic circuits which are used to provide a constant output voltage, despite chances of load and input voltage. These regulators perform their task by using a comparison principle, where it compares the desired output voltage with the input voltage, and compensates the difference by controlling the necessary current.

The NCV47710PDAJR2G linear regulator utilizes a common “Error Amplifier” that is used in many other linear regulators. Here, the output voltage of the “Error Amplifier” is monitored and compared to the desired output voltage.

When the two voltages tend to differ, the “Error Amplifier” outputs a proportionately higher or lower voltage, prompting the transistor to increase or decrease its current flow in order to keep the output voltage to the desired value. This process is known as “Feedback”.

The output current and voltage levels of the NCV47710PDAJR2G can be adjusted using the appropriate resistor configurations, while the power-supply current operation is also easily implemented as the device has a built-in functionality that limits the maximum output current.

Additionally, the NCV47710PDAJR2G also has a Thermal Shutdown feature that automatically disconnects the output if temperature rises above a certain value, thus making the device more reliable and safer to use.

Conclusion:

The NCV47710PDAJR2G linear regulator from ON Semiconductor is a particularly ideal device for many low-power applications, due to its wide operating temperature range, fixed output voltage, as well as its ability to provide strong continuous current of up to 200mA. The device also provides various additional features such as current limit protection and thermal shutdown protection to ensure reliability and protection from overheating.

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