AS7818ADTR-G1

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AS7818ADTR-G1, a versatile linear voltage regulator, is designed to provide multiple voltage levels from a single device. This power management Integrated Circuit (PMIC) is intended for use in a wide range of applications, such as personal computers, consumer electronics, medical equipment, and power management units in devices running on battery power. It can also be used in automotive and industrial electronics. The device has many features designed to ensure high reliability, including protection from temperature and over-voltage, over-temperature shutdown, current limit and a under voltage lockout. In this article, we will discuss the application field of the AS7818ADTR-G1 and its working principle.

Application Field

The AS7818ADTR-G1 is a versatile linear voltage regulator that can be used in a variety of applications. It is intended to provide excellent performance in applications such as personal computers, consumer electronics, battery operating systems, automotive and industrial electronics. This device is extremely power efficient, allowing it to be used in applications that require low power consumption.

The device can also be used to power FPGAs and ASICs, thanks to its low RDS(ON) internal MOSFETs. The AS7818ADTR-G1 also features a Total Output Current Control (TOC) function, which provides excellent current sharing in applications that require a distributed power architecture.

The AS7818ADTR-G1 is also designed to provide multiple voltage levels from a single device, making it highly suitable for devices that require multiple supply rails. It is also protected from temperature, over-voltage and over-temperature shutdown, current limit and under voltage lockout.

Working Principle

The working principle of the AS7818ADTR-G1 is based on the concept of linear voltage regulation. The device uses an internal MOSFET, as well as external feedback resistors, to control the input voltage. The device is designed to limit the output voltage to a fixed value, and provide excellent power supply stability.

The most important part of the working principle is the feedback loop. The feedback loop is responsible for monitoring the output voltage and adjusting the internal MOSFET accordingly. The device has an adjustable Soft Start, which can be adjusted to control the voltage rise time and reduce the inrush current.

The AS7818ADTR-G1 also features an integrated voltage supervisor, which is designed to monitor the output voltage and provide a warning when the voltage exceeds the specified limit. It also features an internal temperature sensor, which can detect any excessive temperature and can shut down the device to prevent possible damage.

In addition to these features, the device also features a selectable Low-Power Mode, which can reduce the quiescent current consumption of the device by up to 70%. The device also features a programmable Hiccup Current Limit, which can reduce the inrush current to a safe level during start-up.

The AS7818ADTR-G1 is a highly efficient and reliable voltage regulator, capable of providing multiple voltage levels from a single device. Its over-voltage, over-temperature, current limit, and under-voltage lockout protection features make it suitable for a variety of applications, including those that require distributed power architectures.

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