MOSFET powers 48 V hot swap in AI servers

Alpha and Omega Semiconductor Limited announced its AOLV66935, a 100V High Safe Operating Area (SOA) MOSFET in an LFPAK 8×8 package. AOS’s latest MOSFET is designed as an ideal solution for 48V Hot Swap architectures in AI servers. The power demands of AI servers are intensifying, primarily driven by the increasing performance of the GPU/TPU. In addition to its wide SOA capability, the AOLV66935 Hot Swap MOSFET features very low on-resistance to meet these performance, efficiency and reliability challenges.

The AOLV66935 utilizes AOS’ 100V AlphaSGT proprietary MOSFET technology that combines the advantages of trench technology for low on-resistance with high SOA capability. AOS has tested and characterised the SOA at 25°C as well as at higher operating conditions of 125°C, giving system architects the confidence that the device will operate reliably under harsh conditions. Available in AOS’ state-of-the-art packaging, the MOSFET’s LFPAK 8×8 gull-wing constructed package is 60 per cent smaller compared to the TO-263 (D2PAK) package. It also features advanced clip technology with a high current rating to provide high inrush current capabilities. In addition, the copper clip and packaging technology used offers low thermal resistance for improved thermal management. The AOLV66935 is manufactured in IATF 16949-certified facilities, and its LFPAK 8×8 packaging is compatible with automated optical inspection (AOI) manufacturing requirements.

Furthermore, the AOLV66935 provides low power loss and reduced heat generation due to its leading low RDS(on) of 1.86 milliohms maximum rating at Vgs=10V. All the advanced features and high current capabilities designed into the AOLV66935 MOSFET deliver the necessary robustness for enhanced thermal cycling in harsh conditions that are now required in the latest AI server applications.

The AOLV66935 MOSFETs are immediately available in production quantities with a lead time of 14-16 weeks. The unit price in 1,000-piece quantities is $3.6.