MC78M06CDTG

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The MC78M06CDTG is a member of the MC7800 series of three–terminal positive voltage regulators designed to provide a local regulation at the outputs of switch-mode power supplies, making them well-suited for systems employing dynamic loads. The regulator uses an internal pass element to provide a relatively high–current output. The current–limiting circuitry prevents internal failure of the regulator, and a thermal shutdown circuit starts protecting the device if the temperature rises to an unsafe level. All of these features make the MC78M06CDTG an ideal choice for a wide range of voltage regulation applications.

In terms of application fields, the MC78M06CDTG can be used for many different applications, including: regulated power supplies, robots and automation systems, home appliances, computer memories and peripherals, handheld electronic equipment, set–top boxes, and other power–critical electronic systems. The device is also well-suited to high current applications because of its ability to operate in a current of up to 1.5A without the need of any external transistors.

The working principle of the MC78M06CDTG is based on its internal pass element, which is an N–MOSFET operating in a voltage–mode control loop. The pass element reacts to the voltage across its drain and source terminal with a relatively constant current source that is able to reduce line and load regulations while providing good transient response. The regulator provides a tight voltage regulation in the range of 4V to 36V and can maintain the output voltage in a range of 3V to 36V. The exact output voltage is configured by placing a single resistor between the regulator output and reference pins.

Unlike other linear regulators, the MC78M06CDTG does not use an external feedback loop. Instead, it employs advanced circuit techniques and a built–in voltage reference to provide a relatively high gain and excellent line and load regulation from input voltage fluctuations. The regulator also offers fast transient response and low output ripple, which helps prevent any negative influence on the following circuit stages.

In terms of protection, the device is equipped with both current–limiting and thermal shutdown circuitry. The current–limiting circuitry prevents the output current from exceeding the maximum current of 1.5A, while the thermal shutdown circuit will disable the device if the temperature exceeds 150 degrees Celsius. This ensures that the device is not damaged when it is subjected to overload or extreme operating conditions.

In conclusion, the MC78M06CDTG is an ideal voltage regulator choice for a variety of applications, thanks to its high output current, voltage regulation, fast transient response and good protection features. Its ability to work with a wide range of input and output voltages makes it well-suited for many power-critical electronic systems.

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