OmniOn Power has added four second-generation Osprey bus converters aimed at AI data center and high-density compute platforms that use 48 V distributed power with a regulated 12 V intermediate bus. The new QODN modules are designed for 48/54 V-to-12 V conversion and keep the same modified DOSA quarter-brick footprint as the previous-generation QODE parts, while pushing higher power and higher stated efficiency.

The lineup includes a 2,600 W QODN217, a 2,000 W QODN167, a 1,600 W QODN136, and a 1,300 W QODN108. OmniOn lists full-load efficiency at 54 V input as 97.9% for the QODN217, 98% for the QODN167, and 98.1% for both the QODN136 and QODN108. Peak efficiencies are listed as exceeding 98.4% for the 2,600 W and 1,300 W models, and exceeding 98.5% for the 2,000 W and 1,600 W models.

Across the family, OmniOn specifies a 40 V to 60 V input range with a regulated 12 V output. The modules also include an integrated PMBus interface, with remote on/off, remote sense, power-good signaling, firmware updates over I2C, and fault logging. Protection features listed include output overcurrent, output overvoltage, overtemperature, and input under- and overvoltage protection, with an operating temperature range of –40° C to +85° C.

For data center engineers building higher-power AI server trays and GPU baseboards, a quarter-brick 48 V-to-12 V stage is often a thermal and layout problem as much as it is an electrical one. Shaving conversion loss at these power levels can translate directly into lower heat flux on the board and a bit more margin for cold-plate design, airflow, and component derating. But the tradeoffs still come down to how the converter behaves across the real operating band, not just a single full-load point.

“Our latest Osprey-series bus converters provide peak efficiencies up to 98.5% in the same quarter-brick footprint as our previous-generation Osprey bus converters, delivering up to a 1% efficiency improvement without increasing board-space requirements,” said Philip Zuk, SVP and GM of OmniOn Power’s AI and Data Center business.

OmniOn says the QODN converters are available now. More information is available on the OmniOn Power website.

Source: OmniOn Power