S-1137A28-U5T1G

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The S-1137A28-U5T1G from SISWID is a voltage regulator in a tiny 8-pin package. It is classified as a linear voltage regulator, and its main purposes are to maintain a constant voltage level, and to provide a stable flow of power. It can be used in applications such as telecommunications, instrumentation, automotive and consumer products.

The S-1137A28-U5T1G voltage regulator has a maximum input voltage of 28V and an adjustable output voltage from 1.2V to 28V. It can provide up to 500mA of current. It operates up to a rated temperature of 125°C and can result in a 0.1%/°C temperature coefficient. It also provides a low quiescent current of 1mA and a very low drop-out voltage of 0.15V.

The S-1137A28-U5T1G voltage regulator is designed to deliver a very low output voltage ripple, with a maximum of 10 mVp-p. The wide input voltage range, excellent load regulation, and low drop-out voltage make it suitable for a wide range of applications.

The working principle of the S-1137A28-U5T1G voltage regulator is fairly simple. It consists of an internal voltage reference (typically 0.7V), an error amplifier, an internal regulator, and a pass transistor. The voltage reference generates a known voltage, while the error amplifier compares the reference voltage to the output voltage. The difference between the two voltage levels is the so-called error voltage, the magnitude of which, in turn, is amplified by the error amplifier. This amplified error voltage, in turn, is used to control the internal regulator, which then adjusts the current flow, and hence the voltage, of the output. When the output voltage reaches the desired voltage level, the error voltage will become zero, and the internal regulator will stop adjusting the output current.

In summary, the S-1137A28-U5T1G voltage regulator is a linear voltage regulator capable of maintaining a constant output voltage, providing a stable flow of power, and exhibiting excellent performance characteristics. Its adjustable output voltage, low drop-out voltage, and low quiescent current make it suitable for a wide range of applications, including telecommunications, instrumentation, automotive, and consumer products. Its simple working principle and wide operating temperature range make it a reliable and cost-effective solution for a variety of applications.

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