LT1521CMS8#PBF

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LT1521CMS8#PBF Application Field and Working Principle

The LT1521CMS8#PBF is a member of the LT1521 family of linear voltage regulators and is part of Linear Technology\'s PMIC (Power Management Integrated Circuits) product line. This device is a thermal feedback voltage regulator, or T-REG, which provides extremely precise and stable adjustable output voltages in a tiny, 4mm x 3mm package. The LT1521 uses a specifically designed linear architecture to provide low noise and reliable operation in a wide temperature range and holds tight output voltage regulation accuracy over the entire operating range. The LT1521 is an excellent solution for microprocessor and other precision power supplies applications.

Application Field

The LT1521CMS8#PBF is a versatile linear voltage regulator and can be used in power supplies for microprocessors, as well as other precision electronics such as medical and military applications. Its high current output makes it suitable for use in digital or analog systems and its small size makes it ideal for portable or space-constrained applications. The LT1521CMS8#PBF can also be used in power supplies for applications such as motor control and drive circuits, and communication equipment.

Working Principle

The LT1521CMS8#PBF is a thermal feedback regulator, relying on the relationship between the physical temperature and the voltage at the feedback pin. Thisrelationship is used to regulate the output voltage in extremely precise increments. The LT1521CMS8#PBF has a thermal feedback pin, VFB, that is connected to a temperature-sensitive junction inside the device. As the temperature of the junction changes, the voltage at this pin will adjust accordingly, driving the output voltage higher or lower.

The LT1521CMS8#PBF is capable of delivering current up to 200mA, with an output voltage that can be programmed using external resistive dividers. The output voltage is corrected using the voltage at the VFB pin and adjusted to match the programmed value. The output voltage is also monitored remotely from an external pin, with precision up to ±2% of the programmed value. The LT1521CMS8#PBF maintains tight voltage regulation accuracy and low noise for loads up to 1A.

Conclusion

The LT1521CMS8#PBF, member of the LT1521 family of linear voltage regulators, is a small (4mmx3mm) T-REG (thermally activated voltage regulator) that provides stable, precise and reliable power regulation due to its thermal feedback function. It can be used in various applications such as microprocessor, medical and military systems, motor control and communication networks, thanks to its high current output capacity of up to 200mA and remote monitoring with precision up to ±2%.

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