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ISL6720AARZ Application Field and Working Principle

ISL6720AARZ is a voltage regulator linear, produced by Intersil Corporation, for low-noise applications that require programming flexibility. The device is suitable for use in applications ranging from cell phone power management to precision analog signal conditioning, especially for applications that require low input voltage, low noise, low quiescent current and high power conversion efficiency.

Features

High accuracy: Accuracy of up to 20mV with external reference on the VOUT pin makes it suitable for precision analog applications.

Low quiescent current: The quiescent current of the ISL6720AARZ is only 30uA, which is much lower than competing devices.

High power conversion efficiency: The ISL6720AARZ has a power conversion efficiency of up to 98%, compared to 95-97% for competing devices.

Flexible programming: The ISL6720AARZ offers several programming options including a power down mode and selectable programmed voltage option.

Application Field

The ISL6720AARZ is widely used in applications that require low noise, high accuracy and high power conversion efficiency. These include:

• Cell phone power management
• Automotive systems
• Precision analog signal conditioning
• Bluetooth and GPS systems

Working Principle

The ISL6720AARZ is a voltage regulator linear, which operates by taking an input voltage, typically from a battery or other power source, and regulating it to a predetermined output voltage over a certain range of current. The device uses an internal current limiting circuit that prevents overloads, and it also includes a low-battery comparator and a power good indicator for monitoring battery status.

The ISL6720AARZ also includes an enable function that allows the device to be shut down when not in use, and it includes a thermal protection circuit to protect the device from overheating. The device also features a selectable programmed voltage option that allows the output voltage to be set to one of three fixed values, enabling the device to be used in applications with different voltage requirements.

Conclusion

The ISL6720AARZ is one of the most popular voltage regulator linear devices available, offering high accuracy, low quiescent current, high power conversion efficiency, as well as flexible programming options. Its flexibility and accuracy make it an excellent choice for various low-noise precision analog applications, ranging from cell phone power management to automotive systems and GPS and Bluetooth systems.

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