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Powering AMD uni-plane and split-plane processors with the ISL6323

Posted: 13 Mar 2009 ?? ?Print Version ?Bookmark and Share

Keywords:processor power? ISL6323 hybrid? interface VID?

The ISL6323 supports hybrid power control of AMD processors, which operate from either a 6bit parallel VID interface (PVI) or a serial VID interface (SVI). The dual output ISL6323 features a multiphase controller to support uniplane VDD core voltage and a single phase controller to power the Northbridge (VDDNB) in SVI mode. Only the multiphase controller is active in PVI mode to support uniplane VDD only processors.

The ISL6323EVAL1Z evaluation board showcases the functionality of the ISL6323 in an easy-to-use platform that allows designers to fully evaluate all the features of the ISL6323 controller. The ISL6323EVAL1Z evaluation board is configurable for core regulation utilizing two to four channels in the multiphase Core regulator. A PC can be used to send PVI and SVI commands to the ISL6323. The response of the regulators, both the Core and the North Bridge, can be reviewed through the use of the on board load transient generators. The platform also allows for customization of the design to evaluate a solution that adheres to different regulator specifications.

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