Power Integrations unveils AI data center PSUs

Power Integrations, Inc. unveiled two new ultra-slim, compact auxiliary power supply reference designs for 800 VDC AI data centers at COMPUTEX. These designs, a 15 W single-output and a 35 W six-rail, are specifically optimized for the Nvidia Kyber liquid-cooled, blade-rack architecture. They offer significant space savings (approximately 30 percent) and a reduction in Bill of Materials (BOM) count (estimated 30 percent) on main power distribution boards, while maintaining high efficiency (at least 88 percent). The designs utilize Power Integrations, Inc.' InnoMux-2 ICs with 1700 V PowiGaN gallium-nitride (GaN) technology, which Jason Yan noted as superior to discrete silicon carbide alternatives. These PSUs are crucial for control and housekeeping functions in high-voltage AI data center applications.