TPS75225QPWPR

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TPS75225QPWPR Application Field and Working Principle

The TPS75225QPWPR is a Texas Instruments, a high voltage linear regulator with two or three adjustable output voltages. It is designed to be used in mobile computing and communication platforms, industrial applications, and automotive applications. The regulator has an adjustable maximum current-limit setting of up to 1A, and a maximum output voltage of 18V.

The TPS75225QPWPR enables the users to design systems with up to three independent power supplies for the system, such as for the processor and for peripheral supplies. The external components, such as sense and compensator resistors and bypass capacitors, required for optimal system performance can be easily selected with short time. It has additional fixed 1.8V and adjustable 1.425V output voltage regulator to place the outputs in specific voltage ranges.

The TPS75225QPWPR is a voltage regulator, which essentially converts a higher input voltage to a lower output voltage, while allowing a maximum of 1A current limit. It is a linear regulator, as opposed to a switching regulator, which regulates the voltage using an active electronically controlled component such as a field-effect transistor or an operational amplifier. The output voltage is controlled by two or three external sense and compensator resistors, which sense the drop across the output and compensates for it.

The TPS75225QPWPR supports external sequencing for sequencing multiple power supplies. This is done by providing a signal (ON pin) to the next regulator after a valid output voltage is detected from the previous regulator. This feature eliminates the need for boards with several regulators placed close together, improving cost effective solution and reducing design complexity.

The TPS75225QPWPR is protected from common mode Common Mode voltage up to 15V, reverse current on shutdown, over current and over voltage. The thermal protection shuts the device down when the junction temperature exceeds 150°C to protect the device from overheating.

In conclusion, the TPS75225QPWPR is an adjustable high voltage linear regulator used in communication and mobile computing applications. It has an adjustable output voltage range of up to 18V, and an adjustable current-limit setting of up to 1A. It offers external sequencing for sequencing multiple power supplies, protection from Common Mode voltages of up to 15V, reverse current on shutdown, over current, and over voltage, and thermal protection for protection from overheating.

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