AN79L07M

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AN79L07M is a 3-terminal positive voltage regulator integrated circuit that provides an output voltage with an accuracy of two percent over an operating temperature range of -40°C to 125°C. This regulator is a high‐efficiency linear voltage regulator that is capable of supplying an output current of up to 1A. It is designed for a wide range of applications and is especially suitable for providing stable output voltages for mobile devices that are powered by a single-cell Li-ion battery.

The application field of AN79L07M is mainly mobile and portable electronics. This voltage regulator is ideal for devices powered by a single-cell Li-ion battery, such as mobile phones, PDAs, digital cameras, and MP3 players. Its high efficiency, low dropout voltage, small size, and low power consumption make it an ideal choice for these devices.

The working principle of AN79L07M is based on a linear regulator. It works by drawing current through an external resistor, which then sets the output voltage. The output voltage of the regulator can be adjusted by changing the value of the external resistor. The regulator also includes an error amplifier, which compares the output voltage with the reference voltage. If the output voltage is too high, the error amplifier reduces the load current to decrease the output voltage. And if the output voltage is too low, the error amplifier increases the load current to increase the output voltage. The output voltage of the regulator is then stabilized at the desired voltage.

In addition, the AN79L07M includes a number of advanced features including over voltage and over current protection, thermal shutdown and soft start circuit. The over voltage and over current protection allow the regulator to protect itself from damage due to excessive current or voltage. The thermal shutdown circuit shuts down the regulator when its temperature reaches a certain level, ensuring that it does not overheat and potentially damage the device it is powering. And the soft start circuit gradually increases the output voltage when the device is powered up, preventing the device from experiencing any sudden surges in voltage.

In conclusion, AN79L07M is a high‐efficiency linear voltage regulator that is capable of providing an output voltage with an accuracy of two percent over an operating temperature range of -40°C to 125°C. It is primarily used in mobile and portable electronics, such as mobile phones, PDAs, digital cameras, and MP3 players, due to its high efficiency, low dropout voltage, small size, and low power consumption. Its working principle is based on a linear regulator and it includes a number of advanced features such as over voltage and over current protection, thermal shutdown and soft start circuit.

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