MIC29302WU-TR

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The MIC29302WU-TR is a 3A ultra low dropout linear voltage regulator. Utilizing active current limiting and thermal protection, it is ideal for applications with stringent output voltage accuracy and current consumption requirements. It provides excellent output and line regulation, with a maximum dropout voltage of only 0.4V at 3A and with a bypass capacitor of 0.1uF, as well as very low quiescent current. With various output voltage options from 1.2V to 5.0V, the MIC29302WU-TR is suitable for many different applications in a variety of industries, from consumer products to automotive and industrial sectors.

The MIC29302WU-TR is a 3-terminal linear voltage regulator. With the addition of only a few external components, the device can be easily configured to provide an adjustable output voltage that is accurate and thermally stable over more than a wide range of input voltage and temperature values. Its adjustable version features a single pin that can be used to adjust the output voltage between a reference voltage of 1V and its maximum output voltage, which ranges between 3.3V and 5V depending on the model.

The MIC29302WU-TR operates by utilizing a control loop to regulate the output voltage. This loop is made up of the internal pass transistor, a feedback divider, an error amplifier, and an internal current source. The feedback divider is used to proportion the output voltage, and the error amplifier compares this voltage with a reference voltage at the reference input. The internal current source is then used to sense and adjust the drive to the pass transistor. When the output voltage increases above the reference voltage, the current source will lower the output of the pass transistor, decreasing the current and voltage at the output of the device to maintain the desired voltage level.

In addition to this standard control loop, the MIC29302WU-TR also incorporates additional features to provide protection against faults and abnormal operation. These features include current limiting and thermal protection. Current limiting is used to prevent excessive current draw from a shorted load or a badly specified circuit. Thermal protection will protect the device and its components from overheating. When the device heat exceeds a certain level, the current source is shut off to reduce the output voltage and dissipate the heat.

In summary, the MIC29302WU-TR is an excellent 3A ultra low dropout linear voltage regulator. It is well suited for applications which require high precision, stability and low power consumption, and it offers superior current limiting and thermal protection features. The adjustable version provides an adjustable output voltage that is highly accurate and thermally stable, making it ideal for a variety of applications in many different sectors.

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