RBC Series

Murata Power Solutions' Regulated Bus Converter (RBC) deliversup to 210W output power, with a Vin range of 36-75V, efficiency of 92.5 percentat full load with Vout regulation ( plus or minus 1.5 percent) in a quarter brick open framepackage.

Thedesign of the RBC-12/17-D48 dc/dc bus converter has been optimized for use indistributed power Regulated Intermediate Bus Architectures (RIBAs) where it canbe used to drive point-of-load (PoL) converters. Applications include48V-powered datacom and telecom installations, base stations, cellulartelephone repeaters and embedded systems.

Thefully isolated (2250V dc) RBC-12/17-D48 is able to accept a wide range 36 to75V dc (48V nominal) input. This is then converted to a 12V dc/17A output.Overall dimensions of 2.22 (56.39) x 1.45 inch (36.83 mm) plus a low overallheight of 0.42 inch (10.67 mm) allow the RBC to fit into applications wherecard cage space is restricted.

Thesynchronous-rectifier topology and 225kHz fixed-frequency operation of the RBCresults in the efficiency levels. The present trend in distributed power architectures(DPAs) require Wide Vin ranges, high efficiency and Vout regulation for themost efficient regulated IBA systems.

Protectionfeatures incorporated in this product are input under-voltage (UV) lockout,output current limiting, short-circuit hiccup, over-temperature shutdown andoutput over-voltage. Positive or negative polarity remote on/off control isavailable as an option. A base plate, for mounting to cold surfaces ornatural-convection heatsinks, can be specified for applications that do not haveforced air cooling or where there is zero airflow. The RBC-12/17-D48 possessesall relevant FCC, UL and IEC certifications for emissions, safety andflammability.

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