S-1112B21PI-L6GTFU

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Introduction

The S-1112B21PI-L6GTFU is a linear regulator specifically designed to meet the power requirements of embedded systems designed for industrial, commercial, and consumer applications. It is an integrated, low-power solution for providing reliable, efficient, and cost-effective operation across a wide range of operating conditions. It is an ideal choice for embedded system designers as it is highly reliable and offers a variety of capabilities, including high performance, low ripple and noise, and low circuit complexity.

Application Field and Working Principle

The S-1112B21PI-L6GTFU is designed for use in a variety of embedded systems, including industrial, commercial, and consumer applications. It is widely used in applications such as motor control, HVAC, telecommunication systems, energy management, and medical equipment. This device is widely appreciated by system engineers as it offers a number of features such as low noise, high accuracy, and low quiescent current.

This device provides linear voltage regulation from an input voltage supply ranging from 3V to 18V. The output voltage is adjustable from 0.8V to 18V and can support both positive and negative regulation. It is designed to provide an accurate output voltage and a low ripple voltage. The output voltage is highly stable and noise-free at both normal and low-frequency operation.

The device features a unique two-stage topology. The first stage provides the required level of voltage and current conversion, while the second stage is the noise filter stage. In this two-stage topology, the output voltage is maintained at a stable level regardless of the input voltage or load. The device also features a built-in tracking error amplifier which ensures that the output voltage is not affected by any external voltage spikes or transients.

The S-1112B21PI-L6GTFU also features an internal surge protection circuit, which prevents short-term spikes in the output voltage. This surge protection circuit is highly effective against surges and is designed to safely dissipate any sudden increase in load current.

The device also integrates over-temperature and over-current protection to prevent excessive current consumption in both normal and fault conditions. When the output voltage drops below a specified threshold, the device will shut down the output to protect it from further damage from overload.

The S-1112B21PI-L6GTFU features a small-sized QFN-20 (4.0 x 4.0 mm) package. This chip can be conveniently soldered to a double-sided standard copper board to ensure excellent thermal and mechanical performance.

Conclusion

The S-1112B21PI-L6GTFU is an ideal device for embedded system designers who need linear voltage regulation solutions that offer high performance, low noise, and low circuit complexity. It provides reliable and cost-effective operation in a variety of applications and is easy to install and configure. The device combines a two-stage topology with an internal tracking error amplifier, surge protection circuit, and over-temperature/over current protection for safe and reliable operation.

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