S-1131B33UC-N4STFU Integrated Circuits (ICs)

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The S-1131B33UC-N4STFU linear voltage regulator is a member of the PMIC (Power Management Integrated Circuit) voltage regulators family. It offers low dropout voltage and low quiescent current in a SOP package, making it suitable for applications where battery-powered and portable devices require a high amount of power efficiency.

The S-1131B33UC-N4STFU is a linear regulator that operates from an input voltage of 2.2V to 7V, meaning it takes in any voltage and outputs a stable 3.3V output voltage. It has a load and line regulation of 0.4%, an excellent power supply rejection ratio of 45dB, and a maximum output current of 1A. It also features low quiescent current of 30µA and low dropout voltage of only 0.25V at 500 mA, making it ideal for battery powered applications.

The S-1131B33UC-N4STFU provides a variety of interface protection functions, including a thermal protection circuit that quickly reduces the output current if the heatsink temperature exceeds the set temperature to prevent device damage, and short-circuit protection that prevents excessive current flows when the output is short-circuited. It also offers overtemperature protection to prevent damage due to excessive temperatures.

The working principle of the S-1131B33UC-N4STFU is to maximize the utilization of input current and voltage. It works by monitoring the output voltage, then it compares the resulting data to a reference voltage and sends it through error amplifiers and operational amplifiers. These amplifiers drive a series of MOSFETs, biasing or switching the current, so that the output voltage of the system is set to the reference point.

The S-1131B33UC-N4STFU can be used in a variety of applications, from portable battery-powered consumer electronics, such as smartphones, tablets, and digital cameras, to industrial and automotive applications such as motor controllers and lighting systems. It is ideally suited for high power intelligent applications and consumer applications where low power and high efficiency are required.

Overall, the S-1131B33UC-N4STFU is a versatile and efficient voltage regulator which offers very low dropout voltage and quiescent current, ideal for high power battery powered applications. With its low dropout voltage and interface protection functions, it makes it an ideal choice for many applications that require high power efficiency and reliability.

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