ISL8540IVEZ-T

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The ISL8540IVEZ-T is a high-efficiency, high-density DC-DC switching regulator designed for various applications, including electronic system design, power supply design and other high-power applications. It is an integrated circuit that uses an advanced switching topology to convert input voltages into output voltages. The device provides very high-efficiency operation up to 95%, with an optimized power stage design that provides superior performance in a very small package.

The ISL8540IVEZ-T is a current-mode, pulse-width modulation (PWM) regulator featuring very low output ripple, ultra-low minimum on/off timing, and minimum input/output regulation. The device also integrates integrated output overvoltage, overcurrent and thermal protections to ensure reliability and safety. Its wide buck switching-frequency range with the synchronizable feature allows and supports the best possible noise suppression in systems, even with an input voltage range up to 550 VDC. The device also integrates an enable function to provide a logic-enabled start up or shutdown and ensure reliable operation in systems with high/low voltage demands.

The ISL8540IVEZ-T has various features that make it versatile and suitable for multiple applications. It provides very fast transient response and a fast loop compensation response, which can help in many high-density designs. It has a high switching frequency, which allows for maximum efficiency and the ability to use a much smaller external output filter. The switching frequency can be synchronized with an external source for applications that require improved noise immunity.

The ISL8540IVEZ-T is designed for applications such as servers, telecom, battery-powered systems and automotive applications. It is also suitable for many types of power adapters, including USB power adapters and multi-output AC adapters. The device also integrates an enable pin that allows the regulator to start-up, shut-down or re-start automatically.

The ISL8540IVEZ-T uses a voltage-mode PWM control to regulate the output voltage. It uses an internal high-side low-side (HS-LS) driver circuit that is capable of handling up to 10 A continuous load current on the output. This makes it suitable for high power applications. A wide duty cycle range from 2.5% to 97.5%, adjustable outside soft-start and customizable maximum duty cycle limit of up to 97.5% allow for better control and flexibility for system design considerations.

The ISL8540IVEZ-T also integrates a current-mode architecture that provides output current tracking capability for applications requiring dynamic current sharing. It has an adjustable current-mode compensation for operating over an extended frequency range, or to optimize the loop bandwidth for maximum noise immunity and transient response times.

The ISL8540IVEZ-T comes in a space-saving QFN package and supports a wide variety of input voltages. The QFN package also incorporates a low profile sleeve and exposed pad to provide excellent thermal performance. It is available in three different version, the ISL8540PVEZ-T, ISL8540NVEZ-T and ISL8540EVVEZ-T. These versions provide different combinations of features and flexibility for adapting to various application demands.

In conclusion, the ISL8540IVEZ-T is a state-of-the-art switching regulator designed for a wide range of applications, from power supply and system design to telecom, automotive and battery-powered systems. Its advanced features, such as the wide switching frequency range, current-mode architecture and integrated protections make it a suitable choice for game-changing performance in the market.

It is easy to use, highly efficient and compatible with a wide range of input voltages, making it an ideal choice for a variety of applications.

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