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PMIC - Voltage Regulators - Linear

The S-1172B44-U5T1U is a voltage regulator belonging to PMIC (Power Management Integrated Circuits) series. As one type of linear regulator, its application fields include power supply systems and power equipment of aerospace, military and other fields that require high function, high output voltage stability, high accuracy and high reliability.

Application Fields

The S-1172B44-U5T1U is classified into the Linear voltage regulator series, which is widely used for linear output voltage control. Because of the S-1172B44-U5T1U ’s excellent performance, it is found in many industrial equipment and consumer systems, such as automotive systems, cloud servers, medical equipment, industrial control systems, appliances and other systems that require high efficiency and high reliability.

Working Principles

The S-1172B44-U5T1U is a linear voltage regulator featuring an epitaxial silicon carbide chip with a high-frequency switching protection circuit, a low pulse-voltage dropout controller and a current overload protection circuit. It also has a high power switching circuit, a low voltage adjustment circuit, a thermal protection circuit and an isolation feedback circuit.

The S-1172B44-U5T1U can realize the conversion from input voltage to output voltage by a voltage regulator circuit. It is mainly composed of a pair of transistors, resistors, a capacitor, a diode and other components. When the input voltage exceeds the reference voltage, a pair of transistors that is connected in series constitute a voltage regulator, so that the output voltage will remain relatively constant.

In addition, the S-1172B44-U5T1U also has a current overload protection circuit. The current overload protection circuit is a protection circuit applied in the linear voltage regulator, which is mainly composed of a current sensing resistor and a comparator. When the current loading exceeds a certain value, the current sensing resistor will sense the current, and the comparator will start the protection circuit, thus limiting the output current and protect other components from damage.

In summary, the S-1172B44-U5T1U is a linear voltage regulator that can be found in many different applications, from medical equipment to automotive systems, and its excellent performance has contributed to its wide usage. With its power switching circuit, overload protection circuit and low pulse-voltage dropout controller, the S-1172B44-U5T1U is an excellent choice for projects that require high performance and reliability.

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