Vicor PI3751-02 and VTM48Kp020x 48 V direct-to-PoL modules

Vicor Corporation has announced its latest generation of 48 V direct-to-PoL (point-of-load) power components.

The modules allow contemporary low-voltage, high-current CPUs, GPUs, ASICs and DDR memory to be powered off a 48 V distribution bus, enabling good power density, conversion efficiency and low power system distribution loss. The range includes the Cool-Power PI3751-02 Buck-Boost, Pre-Regulator Module (PRM) and the VTM48Kp020x Current Multiplier Module (VTM).

The PRM receives its input from a 48 V distributed bus (Vin up to 55 V) and drives a controlled ‘factorised’ bus voltage to the VTM; the VTM generates an output voltage that is 1/24th of the voltage at its input while multiplying by 24 the current delivered to the CPU. Current multiplication by as much as 48 at the point of load delivers higher efficiency, density and bandwidth, distinguishing attributes of factorised power.

In applications that require telemetry and digital control (eg, CPU, GPU, ASIC and DDR4 memory applications), a Vicor PI3020 digital control and telemetry device may be used with a VTM/PRM pair. Among the features of the PI3020 are PMBus and SVID control interfaces with full support for server processor power VR13 and backwards compatibility for VR12.5 and VR12.0 designs.

Originally published here.