New Industry Products

RO Associates Releases HC Series DC/DC Converter

March 09, 2003 by Jeff Shepard

RO Associates Inc. (Sunnyvale, CA) announced the release of a new ultra-high efficiency, high-current "half brick" with 48V input and 3.3V at 60A. The isolated, fixed-frequency, state-of-the-art design uses synchronous rectification; an integrated planar transformer; and a low-loss, multi-layer PCB to provide 60A of 3.3Vdc power. The high efficiency of up to 92 percent allows the devices to be operated in a typical application without a heatsink.

The HC Series includes an integral thermal interface to attach a high-performance cooling system for more demanding environments. The SYVHC48-3-60-1 comes in the extended half-brick package of 2.42in x 2.4in x 0.5in. The SyncroVerter HC modules are high-efficiency, constant-frequency, isolated, low-noise converters that operate at full power over a baseplate range of –40°C to +100°C and achieve up to 68W/in³ high-power density. The high-current HC modules have dual-output pins for a low-loss PCB interface.

The low-noise, open-frame modules include remote sense, positive and negative on/off logic options, clamping over-voltage protection, standard threaded mounting holes, a trim range of –15 to +10 percent, and 105°C over-temperature shutdown protection. Additional features include current limiting, short-circuit protection and good transient response. Evaluation boards are available and the modules are UL, CSA, TUV and CE compliant.

Pricing for the SYVHC48-3-60-1 in single-piece quantities is $149; 100-piece quantities are priced at $135. Delivery is from stock to six weeks ARO.