MIC69302WR-TR

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MIC69302WR-TR are Voltage Regulators from Linear PMIC (Power Management Integrated Circuit) series and are used to regulate the output voltage of power supplies by providing fixed output voltage version and adjustable output version to satisfy different applications. This IC is available in 3-pin SIP (Single Inline Package), 5-pin SOT (Small Outline Transistor). This IC features low-distortion and low-noise internal compensation, low supply current, open-drain fault flag, short-circuit current limitation, thermal limiting and low dropout voltage.

The MIC69302WR-TR can be found in many applications such as in battery-powered portable devices, these devices typically include notebook computers, cellphones, iPods, and digital cameras. This product can also be used in communication systems like mobile and base stations. Furthermore, it can be used in automotive applications, industrial systems, and power systems in general.

The working principle of the MIC69302WR-TR is simple. It consists of power stages, regulator control blocks, enable function, and error flag output. The power stages include a regulated output voltage and an internal regulator. The regulator adapts its output voltage according to its input voltage and the internal regulator adjusts its output voltage according to a preset voltage. The enable function enables or disables the device according to the input voltage. The error flag output indicates when the output voltage is too low or too high.

The internal regulator adjusts the output voltage with a linear current controlled precision reference. This reference is compared with the error amplifier at the input of the power stages and the output of the error amplifier is compared with the ramp signal at the output of the operational amplifier. The current level of the operational amplifier is adjusted accordingly to regulate the output voltage. The error flag output indicates an abnormally low or high output voltage. The output of the error amplifier is used to regulate the output voltage of the output voltage stage.

In addition, the MIC69302WR-TR has a thermal limiting feature which inhibits the operation of the device if the temperature is too high. It also has a low-distortion and low-noise internal compensation to ensure smooth operation of the output voltage. The device also has a low dropout voltage, which is lower than 0.3V, so that the output voltage is stable even when the input voltage is low.

In conclusion, the MIC69302WR-TR is a linear voltage regulator belonging to the PMIC (Power Management Integrated Circuit) category. It has features such as low-distortion and low-noise internal compensation, open-drain fault flag, short-circuit current limitation, thermal limiting and low dropout voltage. It can be used in many applications such as in battery-powered portable devices, communication systems, automotive applications, industrial systems, and power systems in general. It works by adjusting the output voltage according to its input voltage and the internal regulator adjusts its output voltage according to a preset voltage.

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