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The MIC6315-41D4UY-TR is a precision, low-quiescent current, three terminal low-dropout regulator that is good for applications with extremely tight voltage and current requirements. This regulator is a pin-compatible version of the MIC5315 LDO, making it suitable for applications where both the cost- and space-savings of the MIC5315 are desirable. This article will discuss the application field and working principle of the MIC6315-41D4UY-TR.

Application Field

The MIC6315-41D4UY-TR is an integrated low-dropout (LDO) voltage regulator that is ideal for low-voltage power supply applications such as flash memory controllers, smart phones, medical applications, and Wearable devices. This regulator is capable of providing precision, low-dropout voltage regulation down to 0.8V, which is ideal for many of today\'s 1.2V and lower applications. The MIC6315-41D4UY-TR also has a low quiescent current that makes it suitable for applications where power efficiency is a key factor. With a wide input voltage range (1.8V - 16V), the MIC6315-41D4UY-TR can be used in both low-voltage and high-voltage power-supply systems.

The MIC6315-41D4UY-TR also features a wide range of output-voltage options and a variety of fault protection mechanisms, making it a suitable choice for applications that require high-precision and robust power regulation. The output voltage of the MIC6315-41D4UY-TR can be adjusted with external resistors to produce a precise output voltage. The MIC6315-41D4UY-TR also has built-in protections to prevent against over-temperature, over-current, and short circuit conditions.

The MIC6315-41D4UY-TR is also available in tiny packages, making it suitable for size-constrained applications such as portable equipment and embedded systems. This regulator has an ultra-small footprint and can be used in space-constrained applications such as hand-held devices. The MIC6315-41D4UY-TR can also be used in multi-rail voltage regulation schemes where multiple voltage lines are needed from the same regulator.

Working Principle

The MIC6315-41D4UY-TR is a three–terminal low-dropout (LDO) voltage regulator. It has an input voltage pin, output voltage pin and a ground pin. The input voltage range of the MIC6315-41D4UY-TR is 1.8V to 16V, while the output voltage range is 0.8V to 5.5V. The output voltage of the MIC6315-41D4UY-TR can be adjusted via external resistors. The output current of the MIC6315-41D4UY-TR is limited to 500mA (max), depending on the package.

The MIC6315-41D4UY-TR features an internal temperature-compensated reference that allows for precise and constant output voltage regulation. The MIC6315-41D4UY-TR also has on-board over-temperature protection and over-current protection to prevent damage due to excessive current and temperature. The MIC6315-41D4UY-TR is also able to provide low-dropout voltage regulation down to 0.8V, which is ideal for low-voltage applications.

When the MIC6315-41D4UY-TR is in operation, the output voltage is regulated by the output voltage being compared to the internal reference voltage. When the output voltage is lower than the reference voltage, the regulator internally adjusts the output voltage to the correct value by increasing the amount of current flowing through the output transistor. When the output voltage is higher than the reference voltage, the regulator decreases the amount of current flowing through the output transistor until the correct value is achieved. The MIC6315-41D4UY-TR is able to provide precise and low-quiescent current voltage regulation.

Conclusion

The MIC6315-41D4UY-TR is a precision, low-quiescent current, three-terminal low-dropout regulator. It is suitable for a wide range of applications, from low-voltage memory controllers to multi-rail voltage regulation systems. The MIC6315-41D4UY-TR has a wide input-voltage and output-voltage range, and its output voltage can be adjusted with external resistors. The MIC6315-41D4UY-TR also has integrated protections that prevent over-temperature and over-current conditions. The MIC6315-41D4UY-TR is a suitable option for applications that require precision, low-dropout voltage regulation.

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