AP1119Y90L-13

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The AP1119Y90L-13 is a linear voltage regulator, which is a type of power management electronic device in the field of power management integrated circuits (PMICs). A voltage regulator is a device that keeps a specified voltage at an even rate and prevents changes in the output voltage of a power supply. The AP1119Y90L-13 is designed to provide a reliable and accurate voltage regulation in portable devices, such as smartphones and digital cameras. The device enables designers to reduce overall design size and cost while maintaining safety and system performance. In this article, we will discuss the application field and working principle of the AP1119Y90L-13.

Application Field

The AP1119Y90L-13 linear voltage regulator is designed primarily for use in portable devices where low power drain and small size are essential requirements. It is compatible with mobile applications and other space-constrained applications, such as automotive systems, medical equipment, and robots. It is also suitable for applications where there are large variations in input voltage. The AP1119Y90L-13, with its high-power efficiency, offers considerable reduction in losses, thereby, improving system reliability.

The regulator features a wide range of adjustable output voltage to accommodate a wide range of applications. It offers two types of outputs, fixed and adjustable, which can be chosen depending on the system requirements. In addition, the voltage regulator can also be used in applications that require a high degree of accuracy and repeatability, such as those in communications. The device also provides the capability to set the output voltage to its maximum value by resetting the current limiter.

Working Principle

The AP1119Y90L-13 functions as a linear regulator because it uses a negative feedback loop to maintain a constant output voltage. A linear regulator works by regulating the output voltage based on the input voltage and the current being supplied to the load. The feedback loop that is used to regulate the output voltage consists of an error amplifier, a reference voltage, and a control circuit. The error amplifier monitors the output voltage by comparing it to the reference voltage, and signals the control circuit when the output voltage is higher or lower than expected. The control circuit then adjusts the input voltage to bring the output voltage back to the reference voltage.

The AP1119Y90L-13 is also equipped with an internal current limiter. This limiter limits the maximum current that can flow through the device. This helps protect the device against excessive current and helps ensure stability of the device’s output voltage. Furthermore, an internal thermal protection circuit can be configured to protect the device from over-temperature conditions.

Conclusion

The AP1119Y90L-13 is a low-power, compact-size linear voltage regulator designed to provide reliable and accurate voltage regulation in portable devices. Its wide range of adjustable output voltage, high power efficiency, and current limiter make it suitable for a wide range of applications, including automotive systems, medical equipment, and robotics. Its internal protection circuit ensures system safety, while its feedback loop ensures stable and repeatable voltage regulation. The AP1119Y90L-13 is a valuable tool for designers seeking to reduce the size and cost of portable devices.

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