S-1121B31MC-N2QTFG

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The S-1121B31MC-N2QTFG is a linear voltage regulator that belongs to the PMIC (Power Management Integrated Circuit) family. It is designed to provide power stability and supply to a wide range of applications, from industrial to consumer. With its integrated Input Overvoltage Protection, it is able to protect against power supply overvoltage, making it a reliable and cost-effective solution.

The S-1121B31MC-N2QTFG provides a wide range of voltage regulation options with output voltage ranging from 1.5 V to 33 V, adjustable via two external resistors. Its quiescent current is low, at 4.5 mA, and can be reduced to 1.2 mA in low power mode. It supports a wide range of temperature from −40 °C to +125 °C. It also offers improve PSRR, Line Transient Response, and Output Noise characteristics, making it suitable for a variety of applications.

The S-1121B31MC-N2QTFG is designed for applications such as industrial, consumer and consumer applications, as well as battery-operated devices. It can be used in a wide range of applications such as audio equipment, DC/DC converters, Ethernet transceivers, PCs, notebooks, game consoles, set-top boxes, routers, automotive electronics and more.

The working principle of the S-1121B31MC-N2QTFG is based on a simple linear regulation process. It uses an error amplifier, reference voltage, voltage divider and pass transistor in order to operate. The error amplifier compares the voltage output to a reference voltage and generates a correction signal. This signal is then fed to the control terminals of the pass transistor to control the total current through the output voltage. The voltage divider allows the error amplifier to use an internal resistance bridge in order to read the output voltage, allowing for accurate stability of the output voltage.

In summary, the S-1121B31MC-N2QTFG is a linear voltage regulator ideal for a range of applications, from industrial to consumer. It is designed for use in battery-operated devices and offers wide range of temperature, improved PSRR, line transient response, and output noise characteristics. Its working principle is based on a simple linear regulation process involving an error amplifier, reference voltage, voltage divider, and pass transistor.

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