Multi-phase power chipset targets AI applications

August 19, 2021 // By Jean-Pierre Joosting
Multi-phase power chipset targets AI applications
Chipset achieves greater than 95 percent efficiency and supports designs from 60- to 800-A or more with 40 percent reduced output capacitance.

Designers of high-performance, high-power AI systems can now achieve highest efficiency (to reduce power cost and heat) and smallest total system size with the MAX16602 AI cores dual-output voltage regulator and the MAX20790 smart power-stage IC from Maxim Integrated Products. Leveraging the current ripple cancelation benefit from a patented coupled inductor, this AI multi-phase chipset provides a one percent efficiency improvement compared to competitive products, enabling greater than 95 percent efficiency at 1.8 V output voltage and 200 A load conditions. Furthermore, this increase in efficiency translates to a 16% reduction in wasted power.

The chipset also allows 40 percent less output capacitance compared to competitive products, reducing total system size and capacitor count. The chipset is scalable for various output current requirements and is can be customized to support multiple form factors. In addition, the chipset enables AI computing at the edge as well as cloud computing at the datacenter.

Hyperscale datacenter designers grapple with increasing peak power and related higher thermal levels as they boost computing power to take on the rapidly rising demands of AI applications and deep learning. AI systems implemented with the MAX16602 and MAX20790 multi-phase chipset generate less heat compared to competitive solutions. Due to Maxim Integrated’s patented coupled inductor technology and monolithic integrated dual-side cooling power stage ICs, power loss is reduced as a result of a 50 percent lower switching frequency. The monolithic integrated approach practically eliminates the parasitic resistance and inductance between FETs and drivers to achieve the industry’s highest efficiency.

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