New Industry Products

Artesyn Unveils NXI150/NXI100 POL Converters

June 01, 2003 by Jeff Shepard

Artesyn Technologies Inc. (Boca Raton, FL) unveiled a pair of high-current, point-of-load (POL), dc/dc converters for powering Intel's Xeon and Pentium 4 processors. Available in PCB-pluggable forms, the NXI150 and NXI100 converters are compliant with the latest VRM 9.1 specifications, and deliver up to 75A continuous current and 81A peak current at a user-programmable voltage from 1.1V to 1.85V, using standard five-bit voltage ID codes. Both operate from a nominal 12V input.

The NXI150 and NXI100 employ multi-phase, synchronous rectification techniques, with interleaving to achieve an effective switching frequency of 1MHz, maximize power conversion performance and ensure fast transient response. The converters have typical efficiencies of 85% to 87%, and accommodate load transients of up to 50A/µs with full recovery in <50µs. The converters have no minimum load requirement and are protected against under-voltage and short-circuit conditions.

The NXI150 occupies <14.19mm² and has a profile of 6.6cm, while the NXI100 occupies <20.65cm² and has a profile of 2.9cm. The devices are screened for operation over the 0°C to 60°C temperature range.