AS13985F18_EK_ST

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Evaluation boards, also known as evaluation kits, are designed to support engineers in their development process. While evaluation boards are often used for evaluation, they can also be employed for product applications. Among evaluation boards, Linear Voltage Regulators are those components, often integrated and in the form of integrated circuits (ICs), that can accept an input voltage, regulate it by reducing it to a fixed, lower voltage, and maintain a constant voltage across a load. Each Linear Voltage Regulator is application-specific and has its own set of features. One of the most common regulation ICs is the AS13985F18_EK_ST.

The AS13985F18_EK_ST is a low quiescent current linear voltage regulator with an adjustable output feature. This regulator can accept input voltages ranging from 7.5 to 18V and provides a regulated output of 3.3V at up to 100mA. It can also be adjusted to output any voltage between 2.5V and 5.5V. The low quiescent current, high output accuracy, and fast response are some of the features that make this device ideal for a variety of mobile and industrial applications.

The thermal capabilities of the AS13985F18_EK_ST are also noteworthy. With built-in thermal protection circuitry, it is able to detect and shut down if the chip becomes too hot. This feature prevents potential destruction from occurring due to an overload of current. The device also has low-noise operation and can be used in many different noise sensitive applications.

The working principle of the AS13985F18_EK_ST is quite straightforward. It consists of an input impedance, a voltage regulator (either linear or switching), an output impedance, and an output filter. The input impedance reduces the AC hum with the help of an inductor and then feeds an R–C filtering network, which then feeds the regulator. Due to the low input impedance, it is able to filter any fluctuations in the supplied AC voltage. This filtered voltage is then fed to the regulator, which adjusts the voltage to the preset level. The output filter helps to smooth the DC waveform and prevent spikes, ringing, and other disturbances. It also minimizes the ripple present in the output, thus providing a constant output voltage.

The AS13985F18_EK_ST can be used in a wide variety of applications. Depending on the specific features required, it can be used in mobile applications, such as portable audio players, cameras, and handheld GPS receivers. It can also be used in industrial applications where stability and accuracy of voltage control is vital, such as motor speed control, voltage regulation, and powertrain control. Generally speaking, the AS13985F18_EK_ST can be used any application where a reliable and low-noise power supply is needed.

In conclusion, the AS13985F18_EK_ST is a linear voltage regulator with an adjustable output. It offers low quiescent current, high accuracy, thermal protection, and low-noise operation. Thanks to its features, it can be employed in a wide range of applications where an accurate and reliable power supply is needed.

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