Powering AI processors – 48V vertical power delivery changes the game
AI models demand huge current, driving legacy multiphase designs past 50 phases—causing space, thermal, and control limits Vicor addresses
MIL-COTS ZVS buck-boost switching regulators
Product announced for End of Life. PCN VE20210129
The PI37xx is a series of high efficiency, wide input range DC-DC ZVS-Buck-Boost regulators integrating controller, power switches, and support components, all within a high density System-in-Package (SiP). The PI37xx requires only an external inductor and a minimal number of capacitors, to form a complete DC-DC switching mode buck-boost regulator. The high switching frequency reduces the size of the external filtering components, improves power density, and enables very fast dynamic response to line and load transients. The PI37xx regulator sustains high switching frequency up to the rated input voltage without sacrificing efficiency and supports large DC-DC conversion ratios. The device can also be configured to operate in constant current mode.
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Features and Benefits
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Wide operating range
Simple to use; fast development time
High efficiency
Flexible and rich feature set
Resources
Resources for the design engineer
Innovative 48V AI power architecture delivers both high current density and high current gain
Vicor 48V Factorized Power Architecture slashes thermal losses and delivers high current density to meet the extreme power demands of AI processors
48V Factorized Power Architecture™ slashes thermal losses and outperforms multiphase approach when powering AI
AI hardware faces severe power and cooling limits. Engineers debate 48V vs. 6V intermediate buses alongside new vertical power delivery (VPD) structures
Betterfrost: Putting on the heat
Betterfrost uses a 48V module for pulsed, conductive glass heating, clearing ice in under 80 seconds while cutting start-up defrost energy by 95%
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