ISL6314CRZ-T

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The ISL6314CRZ-T is an integrated system register for core voltage regulation which is used as a special purpose voltage regulator in applications ranging from mobile processors to high speed Ethernet FPGAs. The ISL6314CRZ-T delivers improved dynamic response, accuracy and system power efficiency over previous generations of core voltage regulators. It offers voltage control to support both synchronized and variable processor cores, as well as variable and linear response architecture. The integrated COREVREG provides a programmable voltage set-point, automatic voltage-scaling capabilities, and a built-in temperature throttling mechanism.

The ISL6314CRZ-T is designed to reduce the need for manual adjustments when tuning the voltage regulator settings. It features a knob in the power control unit designed to adjust core voltage. This allows the systems designer to select one of the various core voltages preset by the vendor and consequently modify the core voltage to quickly reach the desired settings without system reboots and avoid potential system instability.

The ISL6314CRZ-T is structured with a 4-bit core voltage reference (Vref) input, enabling the precise voltage settings of the automatic voltage-scaling capabilities. The reference (Vref) offers improved system performance and accuracy compared to other similar devices. The Vref can be programmed through the I 2 C interface and the voltage range can be set from 0.1 volts (V) up to 2.4 volts (V). Further optimization and protection is provided through the use of power saving feature as the integrated COREVREGs can offer lower levels of operating voltage than the other voltage regulators, allowing for reduced power consumption and improved system stability over time.

Once the Vref has been set, the ISL6314CRZ-T can then be used to regulate the core voltage with a number of different architectures. The architecture selected depends on the processor type and performance requirements. The ISL6314CRZ-T can be used to implement synchronous and asynchronous architectures, both with constant and dynamic response. This flexibility enables the system designer to optimise the voltage regulation for their particular application.

The device also features a temperature throttling mechanism to control the output voltage level when the system is running at higher temperature levels. This allows the processor to reduce its voltage level as the temperature increases and thus to reduce the power consumption and dissipated energy, while maintaining an acceptable level of performance. This on-die throttling supports dynamic process management, providing improved energy efficiency and faster response times.

The ISL6314CRZ-T employs a redesigned power plane to reduce response time and improve the efficiency of the core voltage regulator by 25%. The power plane design also helps to improve the overall system thermal performance, as all the major power blocks, such as the VRM, the system processor, and the COREVREG are now connected in a single power plane. This reduces the number of interconnections and increases the overall heat dissipation and system stability.

In summary, the ISL6314CRZ-T is a high-performance voltage regulator that is suitable for a variety of applications, from mobile processors to high speed FPGAs. It provides improved dynamic response, accuracy and system power efficiency over previous generations of core voltage regulators. It also allows for the configuration of voltage control, either as a constant or a variable response, enabling the system designer to optimise their system to the application requirements while keeping power consumption and dissipated energy to a minimum. As a result, the ISL6314CRZ-T offers significant improvements in system power efficiency, thermal performance and overall system stability.

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