S-1155B42-U5T1G

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The S-1155B42-U5T1G is a linear voltage regulator that falls under the Power Management Integrated Circuit (PMIC) umbrella. It is used to provide regulated outputs at desired voltages, and is suitable for a wide range of Voltage Regulator applications. This article will provide a deeper insight into the S-1155B42-U5T1G linear voltage regulator, and how it functions in various applications..

S-1155B42-U5T1G Application Fields

S-1155B42-U5T1G has been designed to cater to a wide range of applications, ranging from automotive, industrial, to telecom and computer systems. As a linear voltage regulator, it is used in power supply systems to provide regulated outputs at desired voltages, such as stabilized and/or globally-regulated voltage for processor cores, interface logic, and embedded systems. For applications such as automotive or industrial systems, S-1155B42-U5T1G provides reliable and stable power output, given a broad input voltage range. Additionally, the low quiescent current draw and low noise optimized for audio circuits, makes it suitable for embedded audio applications such as in-car audio systems.

S-1155B42-U5T1G Working Principle

The S-1155B42-U5T1G linear voltage regulator is based on a three terminal power system that uses a control element such as a transistor and zener diode to regulate a voltage. With the voltage divider network connected to the output, the control element adjusts itself to the desired level and regulates the output voltage with an error amplifier that makes the control element output voltage equal or near the reference voltage. By adjusting the size of the control element, the output voltage can be increased or decreased. The S-1155B42-U5T1G is capable of outputting a regulated voltage from 0.8V to 5.0V, which makes it ideal for various applications needing a wide input voltage range with a regulated output voltage.

S-1155B42-U5T1G Features

The S-1155B42-U5T1G linear voltage regulator packs a slew of features, such as:

• High accuracy- the tolerance of output voltage can be as low as ±2%.
• Wide input voltage range- it can accept an input voltage of up to 50V.
• Low drop out voltage- the drop out voltage is only 200mV typically, which ensures low power dissipation.
• Low quiescent current- the quiescent current is only 2.5mA, which makes it suitable for battery powered systems.
• Excellent acceleration- it can achieve maximum 400mA output driving current.
• Low noise- for audio applications, the S-1155B42-U5T1G is designed for low noise.

The S-1155B42-U5T1G linear voltage regulator is also designed with various protection features, such as short circuit and over temperature protection. Furthermore, it is compliant with the RoHS directive, and is offered in a TSOT-23 package.

Conclusion

The S-1155B42-U5T1G linear voltage regulator is a highly integrated and efficient device suitable for providing regulated output voltages according to application requirements. It is a perfect solution for battery-powered designs, and for automotive, industrial, telecom and computer systems. The accurate voltage regulation, wide input voltage range and output driving current, protection features, low noise and quiescent current, as well as RoHS compliance make the S-1155B42-U5T1G an ideal power solution for many different applications.

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