ISL6590DR-T

DC DC Switching Controllers Overview

The ISL6590DR-T is a digital multi-phase PWM controller designed for core-voltage regulation in processors operating above 1 GHz. It provides intelligent digital control with software-programmable loop compensation and supports up to six phases using ISL6580 intelligent power stages, delivering up to 120A total system current. The device features an asynchronous serial interface, Intel VR10 6-bit Dynamic VID support, and an output voltage regulation range of 0.8375V to 1.600Vdc. Operating frequencies are programmable from 250kHz to 1MHz. It includes Active Transient Response (ATR) algorithms to minimize voltage droop and overshoot, along with programmable adaptive voltage positioning and MOSFET dead time control. The component is housed in a 64-lead 9x9mm QFN package compliant with JEDEC standards.

DC DC Switching Controllers Feature Summary

• Digital multi-phase control architecture supporting up to six phases with software-programmable loop compensation
• Active Transient Response (ATR) algorithms for minimized voltage droop and overshoot during load changes
• Intel VR10 6-bit Dynamic VID interface for dynamic voltage scaling and configuration
• Asynchronous serial interface enabling system monitoring, configuration, and integration with external EEPROM

DC DC Switching Controllers Applications

• Core-voltage regulation for high-performance processors operating above 1 GHz
• Multi-phase power systems requiring fast transient response and noise immunity
• Server and workstation mainboard CPU power delivery designs
• Systems utilizing ISL6580 intelligent power stages for scalable current delivery

DC DC Switching Controllers Procurement Notes

Verify the 'T' suffix indicates tape-and-reel packaging if required by your assembly process. Confirm compatibility with Intel VR10 specifications for your target processor. Ensure the 64-lead QFN footprint matches your PCB layout constraints. Validate that the 0.8375V to 1.600V output range meets your specific core voltage requirements. Check for any obsolescence notices or lifecycle status updates from Renesas Electronics.

DC DC Switching Controllers Selection Notes

Select this controller when digital programmability and active transient response are critical for processor stability. It is suitable for designs requiring up to 120A total current across six phases. Consider the software-defined loop compensation for optimizing performance across varying load conditions. Ensure the design can accommodate the asynchronous serial interface for configuration. This part is ideal for replacing legacy analog controllers in high-end computing applications.

DC DC Switching Controllers Part Context

The ISL6590 series belongs to Intersil's family of digital power management solutions, now under Renesas Electronics. It complements the ISL6580 intelligent power stage to form a complete multi-phase power solution. The DR variant denotes the standard plastic QFN package. This controller represents a shift towards fully digital power management, offering greater flexibility compared to fixed-function analog PWM controllers.

DC DC Switching Controllers Replacement Considerations

Direct replacements include the ISL6590DR without the reel suffix or other variants within the ISL6590 family such as ISL6592, subject to phase count and feature verification. Cross-reference pinouts and thermal characteristics carefully. Verify software compatibility if migrating between different revisions of the digital controller family.