MC79M12BTG

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The MC79M12BTG voltage regulator, also known as an “on-board voltage regulator”, is a linear low dropout (LDO) regulator designed to provide a reliable 5V supply to electronics. Due to its low dropout voltage and high level of efficiency in providing a regulated output voltage, it is ideal for a wide range of applications and end products.

The MC79M12BTG is a 3-terminal positive voltage regulator with an output voltage of 5V and an output current of 750mA. It is capable of leaving a positive voltage regulation of up to 1.6V when the output current is less than 200mA.

The MC79M12BTG regulator features an active low-power mode that reduces its standby current consumption to less than 1μA and is able to handle large capacitive loads. It also has a wide range of protection features including output short-circuit, input over-voltage, internal thermal shut-down, and under-voltage lockout.

The MC79M12BTG is suitable for use in a wide range of applications, including digital systems, telecommunications equipment, computers and peripherals, audio/visual systems, automotive and medical instruments. It can also be used in applications such as digital set-top boxes, telecom infrastructure, multi-media applications, and consumer appliances.

The working principle of the MC79M12BTG is based on the basic law of Ohm\'s Law. The regulator is designed to maintain a constant voltage across the load, despite changes in the load current. The regulator is able to achieve this by controlling the current through the two resistors which form the pass-transistor in the device.

When the input voltage increases, the voltage across the two resistors reduces, allowing the current to pass through them and increase the output voltage. Conversely, when the input voltage drops, the voltage across the two resistors increases, causing the current to decrease and the output voltage to drop.

The MC79M12BTG is also equipped with a number of features to further enhance its performance. These include an internal compensation to improve line and load regulation, a low dropout voltage to reduce power dissipation, a low quiescent current to reduce power consumption, a high PSRR to reduce noise, and a thermal protection to maintain reliability.

The MC79M12BTG is a highly reliable and efficient solution for providing a regulated 5V supply to electronics. Its low dropout voltage, high level of efficiency, and a wide range of protection features make it suitable for a wide range of applications. Its active low-power mode helps to reduce standby current consumption and its wide range of features ensure reliable and consistent voltage regulation.

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