MC7818BT

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MC7818BT is an adjustable three-terminal positive voltage regulator with a typical voltage of 8V. It is designed to offer high performance, low power consumption and high reliability in demanding applications. The MC7818BT is an excellent choice for providing clean and stable power supply for microprocessors and digital circuits.

The core of the MC7818BT is a three-terminal linear regulator with an adjustable output voltage. This device features a current limiting and thermal overload protection circuit with a cascade connection of 79xx voltage regulators. It also has an internal compensation network for stability in applications with higher output current and higher output voltage.

The MC7818BT features an internal thermal protection circuit which includes a transistor that regulates the output voltage in the case of an Over-Temperature condition. This device is available in TO-220, TO-252 and SOT-223 packages. It can also be used in automotive applications with a wide temperature range (-40 to +125℃) and is also suitable for regulated DC power supplies.

The working principle of the MC7818BT is simple. When the input voltage is greater than the output voltage, the device turns off, allowing the output voltage to reach the desired value. If the output voltage reaches the desired value, the device turns on and the output current can flow through the output of the device to the load. In addition, the internal thermal protection circuit ensures that excessive temperatures do not damage the device if the load is disconnected.

The MC7818BT is extensively used for powering components in consumer electronics, industrial, medical and automotive applications. It is used for voltage regulation, switching polarity protection, output voltage stabilization, over-voltage protection, and harmonic suppression. This device is also suitable for battery management systems, point-of-load (POL) regulation, step-down and step-up regulation, and voltage dropping applications.

The MC7818BT is an economical and reliable solution for providing a clean and stable power supply for microprocessors and digital circuits. Its high precision and low noise make it a perfect fit for high frequency applications. Furthermore, the device’s ruggedness, wide temperature range and excellent power supply stability make it an ideal choice for many different applications in demanding environments.

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