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The BZM55C47 part of Luguang is a low-power, 3V/3.3V, low-noise micropower voltage regulators. The device includes a P-Channel MOSFET, an input guard ring, an output voltage regulator, a thermal shutdown protection, and a slew rate enhancement circuit. The input voltage range is 2V to 15V, and the output current is up to 500mA. With a low dropout voltage, this device is suitable for many applications such as battery-powered and vehicle electronics.