S-1131B32UC-N4RTFG

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The S-1131B32UC-N4RTFG is a Low Dropout Linear Regulator, known as a LDO, and is used to supply a regulated low-voltage power output from a higher input voltage. LDOs are used to ensure that a product does not exceed certain voltage and current thresholds, meaning that it reduces the possibility of component malfunction or surges that could damage the device being used. Specifically, the S-1131B32UC-N4RTFG is a 3.3V output voltage regulator that can supply a maximum output current of 300mA.

Application Field

The S-1131B32UC-N4RTFG is ideal for applications that require well-regulated DC power to be supplied to components whilst ensuring minimal power dissipation. Given its ability to handle high-current loads, it is often used in projects that require power to be supplied to microcontrollers, as it is capable of supplying the necessary current without exceeding the maximum threshold. It is also perfect for portable devices, such as tablets or laptops, as it is both lightweight and highly efficient. Due to its diverse nature it is also a popular choice for many different kinds of industrial applications, from robotics to HVAC systems.

Working Principle

In essence, the S-1131B32UC-N4RTFG uses negative voltage feedback to regulate the output voltage. Adjusting the output voltage is accomplished by changing the value of a single external resistor. This resistor determines the actual output voltage of the regulator which is then compared to the internal reference voltage of the device. An error amplifier detects the difference between the actual output voltage and the reference voltage and increases or decreases the operating current in order to bring them back into alignment.

This results in a highly regulated output voltage that is independent of the input voltage, load conditions and temperature changes. Additionally, the S-1131B32UC-N4RTFG features a low quiescent current load of typically 700uA, meaning that wasteful power dissipation is minimized. It is also capable of providing a wide input voltage range of 2.7V up to 5.5V and has protection features such as over-temperature and current limiting which prevent the device from being damaged by spikes or overloading.

Conclusion

The S-1131B32UC-N4RTFG is a high-performance, robust and reliable linear voltage regulator that is well suited to a range of applications. It is highly efficient, able to handle high current loads and has a wide input voltage range. The S-1131B32UC-N4RTFG also has a low quiescent current and features several protection features to prevent the device from being damaged by excessive spikes or excess current. All of these features combined make the S-1131B32UC-N4RTFG an ideal choice for applications that require a well-regulated DC power supply.

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