Wilmington, Mass. - Analog Devices Inc. says that its ADP3204 dc/dc controller chip, when combined with the the recently launched ADP3415 dual MOSFET driver, forms a three-phase controller/driver chip set that complies with Intel's Mobile Voltage Positioning (IMVP-III) specification. Because the chip set is backward-compatible with IMVP-II, OEMs can use the same core converter solution for both generations, ADI said.
IMVP is designed to maximize the operating time of notebook computers by carefully cranking down the core voltage and frequency of the CPU to scale its performance with system demands. Computer makers can now build a dedicated triple-phase core converter solution with well-balanced current sharing and superior transient response, according to Analog Devices.
A key feature of the ADP3204 is its pin-selectable one-, two- or three-phase operation. If used in a three-phase configuration, the chip set delivers up to 50 amps to the microprocessor core, with three ADP3415s driving the power MOSFET switches of a nonisolated synchronous buck power converter topology.
The ADP3204 is packaged a in 32-pin, 5 x 5-mm chip-scale package specified for operation over the industrial temperature range between 0 degrees C and 100 degrees C. OEM pricing in 10,000-piece quantities is $2.40 apiece. Samples and production volumes are available now from stock. Data sheets can be downloaded from the company Web site.
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EETInfo No. 634