LX8211-30ISE

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LX8211-30ISE is an adjustable low-dropout linear voltage regulator, integrated with on-board sense capacitor and voltage reference. With the flexibility of its versatility, LX8211-30ISE is widely used in various applications. Furthermore, its low noise threshold allows you to get the best performance, even in relatively low power designs.

The working principle of LX8211-30ISE is based on the operations of a lemistor. In a lemistor-type voltage regulator, the output voltage (Vo) is approximately equal to the reference voltage (Vref) times a factor K. The factor K is the voltage transfer ratio and is dependent on the design features of the lemistor.

The lemistor operates as a linear negative feedback amplifier. The feedback signal is obtained from the output and is compared with the voltage reference. Depending on the difference between the reference voltage and the feedback signal, the lemistor changes its operating state and thereby provides a regulated output voltage.

The output voltage of LX8211-30ISE can be adjusted either by an external resistor-divider network or by an internal analog-to-digital converter (ADC). Using the resistor-divider network, the output voltage can be adjusted with a resolution of up to 0.1 mV, while the ADC mode allows adjustment within a range of 0.25-30Volts.

LX8211-30ISE is widely used in several applications like automotive, medical, industrial, telecommunications and consumer electronics. Examples of application areas include driving LED displays and general protection of precision ICs and sensitive circuits. Also, the LX8211-30ISE is suitable for battery operated systems, as it offers a low quiescent current, which helps extend the battery life.

Furthermore, the integrated on-board sense capacitor allows the voltage reference to track line and load changes. This leads to improved low-noise performance and reduce non-linear distortion on the output voltage. Furthermore, LX8211-30ISE features a built-in over-temperature protection, so that it can adapt to high-temperature environments.

In conclusion, the LX8211-30ISE is a reliable and robust adjustable LDO linear voltage regulator, suitable for applications demanding a low noise and high output accuracy. Its integrated on-board sense capacitor ensures improved noise performance and temperature protection, while its adjustable output voltage range allows it to be used in various applications.

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