MIC5252-3.3BML-TR

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The MIC5252-3.3BML-TR is an adjustable Low Dropout (LDO) linear voltage regulator. As part of the MIC5252 family, the device features low quiescent current and low ripple, making it ideal for both low-power and high-power applications. Designed with a set maximum voltage rating of 3.3V, the MIC5252-3.3BML-TR is capable of outputting a regulated voltage from 1.2V to 3.3V with a maximum current of 150mA. Furthermore, it offers a two-level current limit and other protection features, such as over temperature and over voltage protection.

The MIC5252 family of LDO voltage regulators has a wide range of applications. It is designed for ultra-low power automated systems operating in extreme conditions, including automotive, numerical control machines, military, continuous monitoring systems, and factory automation systems. Additionally, it is used in line regulation applications with AC/DC adapters, and in battery-powered systems.

The working principle of the MIC5252-3.3BML-TR is quite simple. It is comprised of two stages: the error amplifier and the PNP pass transistor. The error amplifier serves to compare the measured voltage output of the regulator with a reference voltage, while the pass transistor controls the output current. Both stages work together to maintain a precise output voltage, regardless of loading.

When the input voltage to the MIC5252-3.3BML-TR is higher than the reference voltage, the current from the base of the PNP transistor is increased, thus allowing more current to flow through the device and providing a higher output voltage. Conversely, when the input voltage is lower than the reference voltage, the current from the base of the PNP transistor is reduced, allowing less current to flow through the device and providing a lower output voltage. By continuously adjusting the current to the PNP transistor, the error amplifier maintains a constant output voltage.

The MIC5252-3.3BML-TR also features a low-dropout voltage to allow low-current operation without sacrificing accuracy. This feature is especially beneficial in low power applications. The device also has a logic-controlled enable function that allows the user to directly control the regulator\'s on/off status, making it easier to switch between operating and standby modes.

Overall, the MIC5252-3.3BML-TR is a reliable and efficient LDO voltage regulator. It is designed to meet the requirements of a wide range of applications, and is capable of providing a precise and stable output voltage, even under varying loading conditions. Furthermore, it offers low-dropout voltage and logic-controlled enable function to make it easier for the user to control the regulator\'s on/off status.

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