ISL9003AIRUHZ-T

Introduction

The ISL9003AIRUHZ-T is a linear voltage regulator ideal for applications requiring low input and output ripple. This regulator is designed for a wide range of applications and features low-noise performance, very low dropout voltage, and wide output voltage range. Included in this voltage regulator is a simple logic-controlled shutdown that can be used to reduce input power consumption in low power applications.

Features

The ISL9003AIRUHZ-T has several features that make it ideal for low-power applications. These include low dropout voltage, wide output voltage range, internal compensation, and low-noise performance. Additionally, the ISL9003AIRUHZ-T voltage regulator also features an amplifier for linear regulation, as well as an adjustable voltage reference for improved accuracy in regulation. Another interesting feature of this voltage regulator is that it can be used to reduce input power consumption in sleep mode by logic-controlled shutdown.

Applications

The ISL9003AIRUHZ-T is ideal for applications requiring low-noise performance and low input and dropout voltage. It is suitable for applications where the power consumption can be fine-tuned such as cell phones, personal digital assistants (PDAs), gaming consoles, and digital cameras. Additionally, this voltage regulator is also well suited for distributed power applications, as its low dropout voltage and wide output voltage range make it compatible with wide ranges of voltage sources.

Working Principle

The ISL9003AIRUHZ-T is designed with a linear voltage regulator that leverages the amplifier for linear regulation. This linear voltage regulator consists of a reference voltage source, an error amplifier, a resistor divider, and a transistor. The error amplifier senses the voltage output difference between the regulator output and reference, and adjusts the gate voltage of the transistor accordingly. This gate voltage, in turn, regulates the output voltage.

The regulating (output) voltage of the ISL9003AIRUHZ-T is selected by connecting a resistor divider across the output. The divider consists of two resistors connected in series, with their common centre connected to the positive input of the error amplifier. The error amplifier then compares this voltage to the reference, and adjusts the gate voltage accordingly, thus controlling the output voltage.

Conclusion

The ISL9003AIRUHZ-T is an ideal linear voltage regulator for low-noise applications requiring low input and dropout voltage. Its unique set of features provide greater flexibility in e design, and the adjustable voltage reference improves on accuracy and throughput compared with traditional voltage regulators. In summation, the ISL9003AIRUHZ-T is a great addition to any power system design.