IRU1117CY

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Linear voltage regulators convert spanning input voltages to a fixed, preset installation voltage. IRU1117CY is a linear voltage regulator specifically designed for space-sensitive applications. These regulators are available with output levels of 1.4 V to 5 V, with a maximum output current of up to 1.5 A. With an input voltage range of 4 V to 18 V and an operating temperature range of -40 °C to + 125 °C, the IRU1117CY is one of the best choices when it comes to linear voltage regulation.

Application fields

The IRU1117CY stands out in its ability to regulate low dropout voltages. This is due to its typical dropout voltage of 0.3V at 1.5A of output current, making it the perfect partner for space-sensitive applications with both high input and low output voltage requirements. Therefore, the IRU1117CY is the ideal choice for a wide range of applications, including battery-powered devices, vehicular applications, healthcare products, medical equipment, and communication devices, among others.

Working Principle

The IRU1117CY utilizes a voltage-scaling technique to achieve its output voltage, a process that involves dividing a specific amount of current on the input signal to generate the desired output voltage. This is accomplished by regulating the amount of current that flows from the input voltage to the output voltage, as well as by external components such as resistors and capacitors, as well as by the regulator itself.

The IRU1117CY features a current-controlled output voltage that is regulated by the difference between input voltage and output voltage. Specifically, when the regulator senses that the output voltage is below the desired level, the regulator reduces the amount of output current, increasing the output voltage and bringing it back to the desired level. When the output voltage is higher than the desired level, the regulator increases the output current, lowering the output voltage to the desired level. This allows the regulator to maintain a stable output voltage, even during changes in the input voltage.

The IRU1117CY also features a wide range of protection functions, such as current limit, thermal protection, and overvoltage protection, to protect against improper usage and emergency situations. This allows the regulator to be used in a wide range of applications without compromising on safety.

Conclusion

The IRU1117CY is a linear voltage regulator designed to provide an output voltage that is proportional to the input voltage. It is highly reliable and features a wide range of features and protection functions, making it the ideal choice for space-sensitive applications. Thanks to its low dropout voltage and wide operating temperature range, the IRU1117CY is perfect for a variety of applications, from battery-powered devices to communication devices.

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