ISL9000IRJRZ-T

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The ISL9000IRJRZ-T is a linear voltage regulator from the Intersil family of products. It is currently one of the most popular linear voltage regulators for power management integrated circuit (PMIC) applications and is ideal for a wide range of situations where precision performance is crucial. This article will discuss the various applications and features of this voltage regulator, and explain its working principle.

Overview

The ISL9000IRJRZ-T is an integrated linear voltage regulator that includes two adjustable voltage sources, an internal comparator, and an oscillator. It features an adjustable supply voltage range of 1.2V to 6.8V, a typical quiescent current of 3µA, and an output voltage range of 0.8V to 5.5V. This voltage regulator is designed to provide accurate, low-noise power supplies for microprocessors, memory, and signal conditioning circuits. It can operate from a single power supply voltage and its wide input voltage range allows for flexibility in design for a variety of applications. The material used to make this voltage regulator ensures high-quality and reliable performance.

Features and benefits

The ISL9000IRJRZ-T has many features and benefits. It is thermally and inherently stable, provides excellent transient response, and has low noise and low drift. Its wide input and output voltage range makes it highly adaptable and suitable for powering a wide range of devices in different applications. It is also reverse polarity protected and provides constant output current up to 2.0A. Additionally, the voltage regulator is RoHS compliant, meeting all relevant regulations.

Applications

The ISL9000IRJRZ-T is ideal for powering microprocessors, memory, signal conditioning, and other sensitive circuits. It is suitable for most consumer, automotive, and industrial applications. This voltage regulator can be used in engines, computers, phones, tablets, medical devices, and more. It is also often used in applications such as low-power power-supply designs and low-EMI designs. Additionally, it can be used for linear regulator, adjustable regulator, and current-source switch applications.

Working principle

The working principle of the ISL9000IRJRZ-T is based on an adjustable voltage source, an internal oscillator, and a comparator. The voltage source provides an adjustable output voltage. The internal oscillator is responsible for switching the higher and lower reference voltages to the input of the comparator. Depending on the difference between the two voltage levels, the comparator will either switch on or off. The output of the comparator then controls the gate of a power MOSFET, which acts as a buffer between the input and output of the voltage regulator. The result is a constant, regulated output voltage.

Conclusion

As one of Intersil’s most popular linear voltage regulators, the ISL9000IRJRZ-T is an excellent choice for PMIC applications. It features an adjustable supply voltage range of 1.2V to 6.8V, a typical quiescent current of 3µA, and an output voltage range of 0.8V to 5.5V. It is suitable for a wide range of applications, from low-power power-supply designs to low-EMI designs. Additionally, its working principle based on an adjustable voltage source, an internal oscillator, and a comparator, makes it a reliable and accurate power supply solution for microprocessors, memory, and signal conditioning circuits.

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