IRU1030-33CMTR

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Intro and Overview

The IRU1030-33CMTR is a voltage regulator device released by Texas Instruments Inc. It is an adjustable linear regulator chip, providing on-board current or voltage control, with a nominal output voltage of 5V. The IRU1030-33CMTR is part of TI’s series of precision integrated voltage regulators, designed to simplify applications while providing performance, accuracy, and stability in a wide range of applications.

Features

The chip includes strong features that make it useful for use in various applications. It is a low-dropout (LDO) type voltage regulator with an adjustable voltage output. It also features a current-preconditioning stage with a low current drain, allowing for efficient and accurate power supply management for systems that require low quiescent currents.

The chip also features a voltage reference error amplifier, as well as an internal thermal overload protection circuit. It includes optimization for various automotive applications, and its adjustable output voltage range from 0.1V to 27V. Input voltage range from 3V to 18V, with a maximum input voltage tolerance of ±2V.

Applications

The IRU1030-33CMTR is designed for use in a wide range of applications, including automotive, consumer electronics, industrial applications and telecommunications systems. It can be used to regulate power in consumer electronics, such as mobile phones and laptops, where its low quiescent current drain provides efficient and accurate power supply management. In automotive applications, the chip can be used to power electronic stability control systems and automatic emergency braking systems, where its adjustable voltage output and low dropout and thermal protection features provide increased safety and reliability. It can also be used for sound engineering applications, such as audio amplifier circuits, where its voltage reference error amplifier provides accurate and reliable audio signal reproduction. In industrial applications, the chip can be used to power robotic arms and automated systems, where its adjustable output voltage range provides flexibility and its low-current-drain ensures stable power.

Working Principle

The IRU1030-33CMTR is based on two main features, an adjustable linear regulator and a precision voltage reference error amplifier. The adjustable linear regulator portion of the chip consists of an adjustable voltage input − 1.25V (±1%) – and an adjustable output voltage ranging from 0.1V to 27V. This is generated by a power output switch which is provided with variable current, set through the voltage reference error amplifier.

The adjustable linear regulator allows the user to adjust the output voltage according to their needs, while the voltage reference error amplifier ensures stable and accurate output voltage control. By setting the voltage reference error amplifier control voltage, the current control is achieved, thus regulating the overall output voltage.

The chip also includes a current preconditioning stage, which is used to convert the preconditioned current from the fixed voltage source into a lower current. This helps to reduce the quiescent current, allowing for efficient and accurate power management for systems that need low quiescent current.

Conclusion

The IRU1030-33CMTR is a precision integrated linear voltage regulator from Texas Instruments. It can be used in various applications, such as consumer electronics, automotive, and industrial applications. It has a voltage reference error amplifier which provides stable and accurate output voltage control, while its adjustable linear regulator allows for adjustable output voltage control. The chip also has a current preconditioning stage which reduces quiescent current and allows efficient power management for systems that require low quiescent current.

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