48V upconverter for 12V data centres

April 12, 2018 //By Nick Flaherty
48V upconverter for 12V data centres
Vicor has launched a 12V to 48V non-isolated converter to support 48V high-performance GPUs in data centres that still use 2V power distribution.

The 2317 NBM converts 12V to 48V with over 98% peak efficiency, 750W continuous and 1kW peak power in a 23 x 17 x 7.4mm surface-mount SM-ChiP package.

The NBM2317S14B5415T00 provides a complete solution with no external input filter or bulk capacitors required. By switching at 2MHz with ZVS and ZCS, the NBM provides low output impedance and MHz fast transient response to dynamic loads with hot-swap and inrush current limiting for data centre applications.

The NBM supports state-of-the-art 48V input GPUs using Power-on-Package (“PoP”) Modular Current Multipliers (“MCMs”) driven from a 48V node sourcing a small fraction (1/48) of the GPU current. Current multiplication overcomes the power delivery boundaries imposed by traditional 12V systems standing in the way of higher bandwidth and connectivity.

 The Power-on-Package modules build upon Factorized Power Architecture (FPA) systems deployed in high-performance computers and large-scale data centres. FPA provides efficient power distribution and direct conversion from 48V to 1V for GPUs, CPUs and ASICs demanding up to 1,000A. By deploying current multiplication in close proximity to high-current Artificial Intelligence (AI) processors, PoP MCMs enable higher performance and system efficiency.



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