Regulated DC/DC bus converter delivers high efficiency with wide input range for distributed power demands
The design of the RBC-12/17-D48 DC/DC bus converter has been optimized for use in distributed power Regulated Intermediate Bus Architectures (RIBAs) where it can be used to drive point-of-load (PoL) converters. Applications include 48 V-powered datacom and telecom installations, base stations, cellular telephone repeaters and embedded systems.
The fully isolated (2250 VDC) RBC-12/17-D48 is able to accept a wide range 36 VDC to 75 VDC (48 V nominal) input. This is then converted to a 12 VDC/17 A output. Overall dimensions of 2.22 inches (56.39 mm) x 1.45 inches (36.83 mm) plus a low overall height of 0.42 inch (10.67 mm) allow the RBC to fit into applications where card cage space is restricted.
The synchronous-rectifier topology and 225 kHz fixed-frequency operation of the RBC results in the excellent efficiency levels. The present trend in distributed power architectures (DPAs) require Wide Vin ranges, high efficiency and Vout regulation for the most efficient regulated IBA systems.
A comprehensive range of protection features are incorporated in this product. , including: input under-voltage (UV) lockout, output current limiting, short-circuit hiccup, over-temperature shutdown and output over-voltage. Positive or negative polarity remote on/off control is available as an option. A base plate, for mounting to cold surfaces or natural-convection heatsinks, can be specified for applications that do not have forced air cooling or where there is zero airflow.
The RBC-12/17-D48 possesses all relevant FCC, UL and IEC certifications for emissions, safety and flammability.
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