KA79L12AZTA

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The KA79L12AZTA is a three-terminal linear voltage regulator that can be used to provide a constant regulated voltage output to a load. The device is well-suited to low-noise, low-power applications that require accurate voltage regulation. It has a maximum output of 3.3V, and its operating temperature range is -30°C to 70°C.

Application Field of KA79L12AZTA

The KA79L12AZTA has a wide range of applications, from providing noise-free voltage supply to various peripheral devices such as sensors, to powering microcontrollers or data converters. It is also used in systems that require low-power operation and that have limited space. The device is especially well-suited to battery-powered applications, owing to its low-dropout voltage and high-level output current capability.

Working Principle of KA79L12AZTA

The KA79L12AZTA is a voltage regulator that uses a voltage-referenced architecture to maintain a regulated output voltage. It features an internally-trimmed reference voltage that is set to a nominal 3.3V for general purpose applications. The device compares its reference voltage to the voltage at its feedback pin. The differential voltage between the two pins is then used to control the action of an error amplifier, which adjusts the output current accordingly.

The error amplifier compensates for any changes in output voltage by reducing its output current, causing the device to draw more current from the input supply. This increase in current causes the output voltage to drop until it reaches the reference value. Likewise, the error amplifier increases its output current when the voltage at the feedback pin rises above the reference voltage. This causes the device to draw less current, ultimately raising the output voltage until it reaches the desired level. Through this process, the KA79L12AZTA is able to maintain a consistent output voltage even when the input voltage fluctuates.

Conclusion

In conclusion, the KA79L12AZTA is an efficient three-terminal linear voltage regulator that can be used in a wide range of applications. It features an internally-trimmed reference voltage and a voltage-referenced architecture, allowing it to maintain a consistent output voltage across a range of input voltages. This makes it especially suitable for battery-powered applications, as it can provide a steady and reliable supply of power.

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