ISL8088IRZ

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The ISL8088IRZ is a high- performance synchronous buck converter for isolated applications. It is part of the Intersil PMIC family, and is categorized as a DC to DC switching regulator. This converter is ideally suited for isolated power systems and distributed power architectures as it provides adjustable output voltage with excellent line and load regulation.

The main feature of the ISL8088IRZ is its ability to efficiently deliver up to 8A continuous output current across a wide input voltage range of up to 90V. This converter is quite versatile, as it provides a range of configurable options including: adjustable output voltage up to 37V, programmable soft-start and constant frequency control, as well as selectable Power Save Modes and enable pin functionality. Moreover, it includes integrated light load, reverse-battery and under-voltage protection.

This converter is suitable for industrial, telecom, telecom infrastructure and datacenter applications. It features a high efficiency of up to 95%, low noise, and is capable of operating in temperatures up to 105°C. The device is available in a compact, 16-watt 6-lead surface mount package, and is protected against ESD.

The ISL8088IRZ can accurately regulate output voltage using peak current mode control, with line and load regulation of typically 0.2% and 0.05% respectively. It features a low quiescent current of typically 20mV, making it well suited for applications with strict power management requirements. This converter utilizes a proprietary Active Loop compensation algorithm and a high performance transconductance error amplifier. It allows for fast and accurate regulation, even in noisy environments.

The ISL8088IRZ also supports a wide range of input voltages from 7V to 90V, allowing it to function with a wide range of power sources, including two-wire input configurations, intermediate bus architectures and single phase/three phase BUS systems. The soft-start feature provides for a smooth and inaudible start-up sequence. Additionally, the converter’s Enable pin allows it to be simply turned on and off, providing an energy-saving feature.

The ISL8088IRZ also has an integrated Power Save Mode (PSM) to reduce switching frequency when light-load or no-load operation occurs. This allows the reduced power dissipation, resulting in improved efficiency and longer battery life in battery-powered applications. The integral reverse-battery protection feature prevents damage due to reverse-battery installation.

In conclusion, the ISL8088IRZ is an excellent choice for a wide range of DC/DC buck converter applications. It has excellent thermal performance, wide input voltage range, low operating voltage, low quiescent current and a very small footprint. Its high efficiency, fast and accurate regulation, and robust protection circuitry make the ISL8088IRZ ideal for a variety of application scenarios. Its integrated Power Save Mode and Enable Pin make it a very energy efficient solution.

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