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ADI three-phase dc/dc converter meets IMVP specifications

Posted: 23 Jan 2002 ?? ?Print Version ?Bookmark and Share

Keywords:analog devices? adi? dc/dc converter? driver/controller ic? multi phase driver?

The ADP3204, when coupled with the ADP3415 dual-MOSFET driver, forms a three-phase controller/driver chipset fully compliant with Intel Mobile Voltage Positioning (IMVP) II and III specifications. This allows OEMs to build a dedicated triple-phase core converter solution with balanced current sharing and improved transient response based on the two devices.

These features make the ADP3204 an attractive solution for mobile voltage regulator designers working with computer manufacturers to optimize the performance of their Pentium 4 notebook products.

The IMVP specifications are designed to maximize the operating time of notebook computers by minimizing the core voltage and frequency of the CPU to scale its performance with the demands of the system.

The ADP3204 features a pin-selectable one-, two- or three-phase operation that delivers up to 50A to the microprocessor core, with three ADP3415 dual MOSFET drivers. Operating out of phase, the company claims that the devices drive power MOSFET switches of a non-isolated synchronous buck power converter topology with minimized ripple.

Measuring 5-by-5mm, the ADP3204 also includes adaptive noise blanking for high speed and easy board layout, as well as redundant over- and under-voltage protection. It has an operating temperature range of 00C to 1000C.

The ADP3204 is quoted at $2.40 each in quantities of 10,000, and is availale in 32-pin CSPs.





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