IRU1117-18CD

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IRU1117-18CD Application Field and Working Principle

The IRU1117-18CD regulates the output voltage of the downstream electric circuit, which is widely used for powering the microprocessor’s core in computer motherboards. It belongs to the category of PMIC – Voltage Regulators – Linear.

With respect to its application field, this voltage regulator IC features low quiescent current and provides good regulation at light loads. It is an excellent choice for low power applications, and it is also widely used in Super I/O chips, embedded CPUs and power management integrated circuits. It can also be used in set-top boxes, modems and other products.

In terms of its working principle, the IRU1117-18CD is similar to traditional voltage regulators in that it uses a closed loop error-correcting mechanism to regulate the output. It has two error-correction transistors, which detect the output voltage, and this feedback signals is used to adjust the output voltage. This voltage is then passed through a reference diode and then through a fixed resistor and the transistor, which forms the base drive voltage of the pass transistor. This transistor then regulates the output voltage depending on the reference. The IRU1117-18CD also has a low quiescent current, so it is very efficient in all kinds of applications.

In addition, the IC also has protection features such as overvoltage and temperature protection. It also has a wide input range, which allows it to handle a variety of input voltages. The output voltage is adjustable from 0.6V to 10V, with a maximum of 20A. Finally, the IC is specially designed for applications in noisy environments, and is PIN compatible with other similar regulation ICs.

To summarize, the IRU1117-18CD is a highly efficient voltage regulator IC which is widely used for powering the microprocessor’s core in computer motherboards. With its low quiescent current, wide input range and adjustable output voltage, it is an excellent choice for low power and noisy applications. It also has several protection features, and it is PIN compatible with other similar regulation ICs.

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