ISL9011IRKPZ-T

ISL9011IRKPZ-T is a device from the PMIC (Power Management Integrated Circuit) Voltage Regulators family, specifically from the Linear group. It is an enhanced-efficiency, low-noise, ultra-low-dropout linear regulator with a wide input voltage range. As a linear voltage regulator, ISL9011IRKPZ-T can provide higher efficiency than more traditional solutions by reducing switching losses and offering better load regulation.

ISL9011IRKPZ-T is designed to offer a dropout voltage of only 150 mV, the lowest dropout voltage in its class, which delivers a significant power cost reduction. The low input impedance of the regulator reduces current noise and thermal stress. The resistor-programmable output voltage range, coupled with the tight load regulation, allows the device to be used in a variety of applications.

ISL9011IRKPZ-T is suitable for a wide variety of applications such as central office or business communications systems, networking equipment, industrial instruments, and automotive applications. Since it features a very low dropout voltage and wide temperature operating range, it is also suitable for use in battery-powered, cooled and hot-swap applications. Furthermore, the device can be used for powering caching memory in custom ASICs, FPGAs and DSPs in cellular base station systems.

The working principle of the ISL9011IRKPZ-T lies on its active circuitry that uses an operational amplifier (opamp) circuit with a N-channel MOSFET transistor as the resistance element between its input to output terminals. The opamp compares the output voltage to a reference voltage and adjusts the gate biasing at the MOSFET according to the difference. By adjusting the voltage of the gate of the MOSFET, the voltage drop across the MOSFET is regulated. This adjustment is called a feedback loop and is the key factor of the working principle of the ISL9011IRKPZ-T.

ISL9011IRKPZ-T devices feature fast transient response, and high accuracy over line, load and temperature with a 0.5% maximum voltage variation. Its low output voltage noise enables the device to maintain low output noise while reducing external components count. The device is available in the surface-mount package and is designed using the latest process technology. It also has several safety features such as overcurrent protection, overload protection, reverse current protection and an overtemperature protection designed using an internal temperature fault flag.

ISL9011IRKPZ-T is a highly stable, reliable, and cost-effective solution for various regulated power applications. With its fast transient response and low dropout voltage, it is the perfect linear regulator for a wide range applications. Its wide input voltage range and tight load regulation make it an ideal choice for applications such as central office or business communications systems, networking equipment, industrial instruments, automotive applications, as well as for powering caching memory in custom ASICs, FPGAs and DSPs in cellular base station systems.