MC7818CT

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The MC7818CT is a voltage regulator specifically developed to be used in application fields such as power supplies, battery chargers, automotive systems, telecommunications and medical imaging. This device is a three-terminal linear regulator featuring low drop-out voltage, relatively high current output and tight regulation. As a result, the MC7818CT provides a high level of reliability when used in power supply applications.

The MC7818CT operates by making use of the output voltage set by pin 6, the reference voltage. The internal circuitry then compares the input voltage, which is applied to pin 3, with the reference voltage and regulates the output voltage accordingly. The output voltage is adjustable over a range of 1.2V to 15V via changes to the reference voltage.

The MC7818CT has an internal pass element that is designed to drive constant current loads while maintaining stable regulation of the output voltage. This allows the device to be used off-line in switching mode power supplies, with the addition of the necessary components to provide switching functions. The on-chip thermal limiting circuitry limits the internal power dissipation when operated in the switching mode.

The MC7818CT is able to provide consistent voltage regulation for a wide input voltage range due to its wide operating voltage range of up to 40V. It has a maximum output current of 100mA which makes it suitable for providing power supplies to small ICs or other low current applications. It also has a low input current of typically 20 µA which helps to save on power consumption.

The MC7818CT employs an advanced feedback control loop which helps to ensure fast transient response, a wide bandwidth, and excellent load and line regulation characteristics. The device features an overtemperature protection circuit which shuts down the device when the junction temperature rises above the specified safe operating temperature limit.

Overall, the MC7818CT is an ideal solution for applications which require a low dropout, low current, high reliability voltage regulator. It is suitable for a wide range of applications, as its features and protection circuits make it a highly reliable and versatile device.

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