MC78T05ACT

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MC78T05ACT is a low-voltage linear voltage regulator manufactured by ON Semiconductor. It is a three-pin, low-dropout (LDO) PDF (power distribution fan-out) regulator with built-in thermal shutdown and short-circuit protection. It has an input voltage range of 4.5V to 40V and an output voltage range of 1.2V to 28V. The nominal output current is 5 amps, but it can handle up to 8 amps. It also has a typical dropout voltage of 0.6V and a wide operating temperature range of -40°C to 150°C.

The MC78T05ACT is mainly used in applications that require low noise, high accuracy and stable voltage regulation. This makes it suitable for use in many common digital and analog applications like automotive, industrial, power management, and consumer electronics. With its high efficiency, it can save cost and power. This device is also designed to provide short-circuit protection by utilizing a foldback current limit, as well as output voltage soft-start and thermal protection.

The MC78T05ACT is designed to take a range of input voltage and accurately reduce it to a stable, precision output voltage. The output voltage is determined by the external feedback network. It works by using a differential amplifier to compare the output voltage to an internal 1.231V reference voltage. The difference voltage then drives the PMOS pass transistor in a linear mode, providing a stable output voltage. The built-in current limit and thermal protection limit prevent the device from being damaged in the event of a large input voltage transient or over-temperature conditions.When the output voltage does drop below the expected regulated value, the output current is limited and the device will not enter into over-voltage mode, thus preventing damage to other devices connected to it.

Overall, the MC78T05ACT is an efficient, linear voltage regulator that provides low noise, high accuracy, and stable voltage regulation. It is suitable for a variety of digital and analog applications, and its built-in current limit and thermal protection make it an ideal solution for systems that require reliable and reliable power management.

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