LT3085EMS8E#PBF

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The Application Field and Working Principle of LT3085EMS8E#PBF

LTC3085EMS8E#PBF is a linear voltage regulator, which is a PMIC (Power Management Integrated Circuit). This type of IC provides a regulated output voltage up to 42V for applications where higher input voltage and current are required.

This specific device is part of the LT3085E family, which offers a wide range of voltages from 2.2V to 42V with 1% voltage accuracy and fast output voltage transitions. This linear voltage regulator is best suited for devices with low to medium current requirements, such as variable power supplies, laboratory equipment, and other devices that require a precisely regulated voltage output.

This device offers a wide input voltage range, superior temperature stability, and high-efficiency performance, making it suitable for a variety of applications. Its power dissipating abilities also make it ideal for applications where high current density is required. Additionally, it features external sense pins that allow the user to sense the output voltage, thus providing better voltage regulation than a traditional linear regulator.

The Working Principle of LT3085EMS8E#PBF

The working principle of the LT3085EMS8E#PBF is based on an error amplifier and an external SenseFET device. The error amplifier senses the output voltage, compares it to an internal voltage reference, and then produces an output signal determining the drain-source voltage of the external SenseFET. A higher voltage reference causes a higher drain-source voltage of the SenseFET, resulting in a higher output voltage.

The main advantages of this regulator are its high efficiency, low quiescent current, protected output, and its fast response to changes in load current. The protected output prevents the IC from being damaged due to overload or output short-circuits, while the fast response provides improved load transient response, making this regulator suitable for a variety of applications.

The device also features a built-in over-temperature protection, which prevents the device from exceeding its predetermined safe operating temperature range. Additionally, it is equipped with an enable/disable function that allows the user to turn the device on or off. This is especially useful in applications where power-saving is desired.

Conclusion

The LT3085EMS8E#PBF is a linear voltage regulator with a wide range of voltages from 2.2V to 42V. It has superior temperature stability, high efficiency, low quiescent current, protected output and fast response to changes in load current, making it suitable for a variety of applications. Its enable/disable feature and over-temperature protection enhance safety and provide power-saving. Its external sense pins allow for better voltage regulation than traditional linear regulators. In summary, the LT3085EMS8E#PBF is an suitable power management solution for devices with low to medium current requirements.

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