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ChiP-set enables higher performance AI Accelerator cards

Vicor has announced a ChiP-set that's been developed for high performance GPU, CPU, and ASIC (“XPU”) processors powered directly from 48V.

A driver, MCD4609, and a pair of MCM4609 current multiplier modules are able to supply up to 650A continuous and 1,200A peak.

Owing to their small footprint and low profile, the current multipliers can be placed close to the processor enabling reduced power distribution network (PDN) losses and higher power system efficiency. Powering GPU and OCP Accelerator Module (OAM) Artificial Intelligent (AI) cards, the 4609 ChiP-set is in mass production and available to new customers on Vicor’s Hydra II evaluation board.

The 4609 ChiP-set adds to Vicor’s Power-on-Package portfolio of Lateral Power Delivery (LPD) solutions. Vicor’s Vertical Power Delivery (VPD) will soon enable much higher current density. The system is able to deliver current from power converters vertically stacked under a processor through a capacitor network geared to a processor-specific pin-map. A GCM (“Geared Current Multiplier”) is a specialised VPD embodiment incorporating a Gearbox capacitor network as a layer in the vertical stack. By supplying current directly under the processor and eliminating PDN losses, GCMs will soon facilitate current densities reaching up to 2A/mm2.

Author
Neil Tyler

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