ISL85403FRZ

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The ISL85403FRZ Integrated Powerstage is a comprehensive DC-DC switching regulator solution for a variety of applications. With the newest and latest technologies, this step-down integrated powerstage offers the highest level of performance, flexibility and reliability in a compact, easy to integrate package. The ISL85403FRZ is an ideal solution for today\'s high performance and cost-sensitive applications such as processors, storage, FPGAs and digital/analog mixed signal applications.

The ISL85403FRZ is capable of supplying up to 25A of continuous current while offering a positive input current limit that allows the device to protect itself and the load in case of an overcurrent event. This device can also handle a wide range of input voltages, from 0.75V up to 6.35V, making it ideal for a broad range of applications. The ISL85403FRZ also offers a wide range of output voltages, from 0.8V to 3.3V, allowing for precise adjustment of the power supplied to the load.

The ISL85403FRZ contains a high-efficiency, low-power mode with power saving oscillator, which allows the powerstage to operate at its most efficient level. Adding to its efficiency, the device also incorporates dynamic voltage scaling, which provides precise adjustment of the output voltage in response to load conditions. The output voltage of the ISL85403FRZ is also protected from overvoltage conditions, ensuring the safe operation of the system.

The ISL85403FRZ switching regulator features integrated FETs and compensation, making it a complete power conversion system. This integrated FETs contain a high-voltage logic-level gate driver and a low-side gate driver. The gate driver is a vital component of the ISL85403FRZ as it controls the switching of the high- and low-side FETs, allowing the device to maintain a consistent output voltage. This saves the system power and reduces cooling requirements, making the ISL85403FRZ more efficient.

The ISL85403FRZ also features a high-impedance line feed-forward control loop, allowing for a constant current regulation even when operating with multiple outputs. This feature ensures that the output voltage remains stable even during load transients. Additionally, the line feed-forward control loop also allows for a faster response time to line voltage variations, allowing for greater accuracy in output voltage regulation.

The ISL85403FRZ switching regulator utilizes constant-on-time (COT) control for improved transient response and robust control loop stability. This makes the device ideal for applications that require high power density and accuracy, such as server, storage systems, and wireless/wired networking. As a result, the COT control provides improved transient response and robust control loop stability, while still providing high efficiency.

The ISL85403FRZ Integrated Powerstage is a powerful DC-DC switching regulator with a high power density and accurate control. With its high-efficiency, low-power mode with power saving oscillator, and FETs, the ISL85403FRZ is a perfect solution for cost-sensitive high performance applications. Additionally, the wide range of input voltages and output voltages, coupled with the excellent line feed-forward control loop and COT control, make the ISL85403FRZ an ideal choice for today\'s power-hungry applications.

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