S-1155B47-U5T1U

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Linear Voltage Regulators are a class of power management IC (PMIC) devices typically used to step down, or regulate, a higher input voltage down to a more useful output voltage level suitable for a range of applications. One commonly used type of linear voltage regulator is the S-1155B47-U5T1U, a high-performance negative voltage regulator.

The S-1155B47-U5T1U is designed to provide a stable, low voltage output from a high input voltage of up to -57V. It is capable of continuously supplying up to 0.800A of current. The S-1155B47-U5T1U includes features such as thermal shutdown, current limit, and overvoltage protection, making it well suited for applications that require reliable voltage regulation. Additionally, the device is available in a TO-220 package, making it ideal for applications with limited space.

The S-1155B47-U5T1U also has a wide range of application fields, such as automotive electronics, industrial and safety equipment, battery-based systems, telecommunications, and consumer electronics. Its excellent regulation performance and fault protection features help to ensure high reliability for power supplies and other sensitive electronics used in those application fields.

The S-1155B47-U5T1U is a conventional three terminal linear negative regulator that operates by comparing a reference voltage to an error amplifier output that is proportional to the input voltage. The output voltage is then regulated based on how much the voltage at the error amplifier output is different from the reference voltage. The device senses the negative input voltage and regulates it to the desired level at the output.

The S-1155B47-U5T1U employs an internal PNP pass transistor, along with the error amplifier, to regulate the output voltage. The device also employs overvoltage, thermal, and current protection to help protect the power system when abnormal conditions are present. This makes it especially useful in applications where safety and reliability are paramount.

In summary, the S-1155B47-U5T1U is a high-performance negative voltage regulator designed to provide stable, low voltage output from a high input voltage of up to -57V. Its wide range of application fields, excellent regulation performance and features such as thermal shutdown, current limit and overvoltage protection, make it a very suitable choice for many applications that require reliable voltage regulation.

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