S-1155B38-U5T1U

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The S-1155B38-U5T1U is a linear voltage regulator of the APX1550 family. These pin-compatible regulators can source up to 800mA of current with very low noise and low quiescent current. They provide an adjustable output voltage from 1.2V to 5.25V, allowing design flexibility as well as fast transient response and good line/load regulation. The S-1155B38-U5T1U is ideal for powering low-noise analog circuits, low-power sensors, microcontrollers, DSPs, SSDs, and other small-scale applications.

The application fields for the S-1155B38-U5T1U vary depending on the specific requirements of the application. These fields include automotive, industrial control, healthcare, telecommunications, and consumer electronic devices. In all of these fields, the S-1155B38-U5T1U is ideal for powering low-noise analog circuits, low-power sensors, and other low-power devices that require steady supply voltages.

The working principle of the S-1155B38-U5T1U is based on the previous equation, which presents the voltage regulation of a linear voltage regulator. Put simply, a linear voltage regulator works by taking an input voltage and using an internal error amplifier to compare it to a set reference and the output voltage. Depending on the amount of difference, the output voltage will be adjusted accordingly.

The S-1155B38-U5T1U is equipped with a current-limit circuit which prevents excessive current from being drawn from the load. If the load draws too much current, the current-limit circuit will detect this and will shut off the device until the over-current is removed from the load. This helps protect the regulator from possible over-current conditions.

The S-1155B38-U5T1U is also equipped with thermal shutdown protection. If the internal temperature of the regulator rises too high, the thermal protection circuit will shut off the regulator until the temperature is reduced. This helps protect the device from possible over-temperature conditions.

The S-1155B38-U5T1U also has several protection features intended to prevent unintentional operation. These include a power-on reset, undervoltage lockout, overtemperature shutdown, and a safe operating area. These features help ensure that the regulator operates within the normal operating conditions specified by the manufacturer.

The S-1155B38-U5T1U linear voltage regulator is an ideal solution for powering low-noise analog circuits, low-power sensors, and other small-scale applications. With its wide range of features and small size, it provides excellent designs for a variety of applications in the automotive, industrial control, healthcare, telecommunications, and consumer electronics fields.

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