90-A dc-dc converter delvers high power density at 178A/in2

With IT and networking technologies continue to pack more features and processing capacity into smaller packages, printed circuit and wired board space are at more of a premium than ever before. For power engineers and board designers, that can mean less board space available for required power components. ABB is helping to free up valuable board space with its new, high power density 90-amp (A) DecaDLynx II power supply. The DC-DC converter fits into a 327-millimeter (mm)2 footprint and achieves a 178-A/in2 power density – one of the highest available today.

The new DJT090 DecaDLynx II power modules can accommodate input voltages ranging from 7.0 to 14.4 volts (V) DC, with precisely regulated, programmable output voltages of 0.50V to 2V. The power supplies can be linked in parallel with up to eight units to achieve a maximum output current of 720A.

Additional features of the DecaDLynx II non-isolated, high-density voltage regulators include: Advance digital controls and monitoring to create “black box” fault detection for advanced diagnostics; 88.5 percent high-efficiency power conversion from 12V input to 1.2V output; Provide full rated power of 90A at typical operating conditions (12V input, 0.8V output, 200 linear-feet-per-minute airflow, and 75 degrees C ambient temperature); Improved time to market, field reliability and seamless design integration with full testing and built-in IPC9592-qualified modules; Low transient and ripple attributes to meet load input voltage requirements.

ABB’s DecaDLynx II power modules meet the rigorous power density and efficiency requirements of demanding applications such as high-speed switches and routers, artificial intelligence processors, tight voltage rails for high-performance processors and in application-specific integrated circuits (ASICs), high-current field-programmable gate array (FPGA) processors, ARM processors, test and measurement devices, and data storage equipment.

Power engineers also can leverage ABB’s Power Module Wizard and Digital Power Insights tools to configure the modules to their specific needs.