ISL9011IRNFZ-T

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ISL9011IRNFZ-T Application Field and Working Principle

The ISL9011IRNFZ-T is a versatile Linear Voltage Regulator (LVR) manufactured by Intersil Corporation that is used to regulate the voltage of various applications. It is based on a patented technology that has been designed to reduce power consumption and improve transient response times. It is a three terminal device consisting of a control, ground and output pin. The device has been designed to provide voltage regulation from 0.4V to 12V, with the maximum output current of up to 600mA and a drop of up to 0.75V. The integrated temperature protection circuit helps to protect the device from over-temperature conditions.

Features

• Output voltage range : 0.4V to 12V
• Max output current: 600mA
• Continuous conduction mode
• Drop-out voltage: 0.75V
• Temperature protection circuit
• Low power consumption
• Improved transient response times

Applications

• Automotive Applications
• Battery Powered Applications
• Portable Devices
• Notebook and Desktop Computers
• Servers and Hard Drives
• Telecommunications

Working Principle

The working principle of the ISL9011IRNFZ-T is based on self-regulation control. It consists of an on-chip transconductance amplifier, current sense resistor and a PWM comparator. When a voltage is applied to the input pin, the voltage regulator automatically adjusts the output voltage by controlling the duty cycle of the PWM comparator. The current sense resistor is used to sense the output current. The transconductance amplifier then compares the output current and the reference current to determine the duty cycle of the output voltage.

In addition, the device also has a temperature protection feature which is used to protect the device from over-temperature conditions. The temperature limit is set internally to 135°C but can be adjusted externally with a single resistor. The temperature protection circuit is enabled by default and the current trip point is set to the base value of 2A. The device also has a low power mode which can be used to reduce power consumption.

The ISL9011IRNFZ-T serves as an important voltage regulation device for various applications in a wide range of industries including automotive, telecommunications and portable devices. Its low power consumption and improved transient response makes it an ideal choice for power savings and better performance.

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