NBM2317 Non-Isolated, Fixed Ratio, DC-DC Converter

Vicor's patented NBM2317 is a bridging converter for 48 V and 12 V systems, delivering 800 W at 97.9% peak efficiency. The NBM family of converters are available in Through-Hole Converter housed in Package (ChiP™) and Surface Mount Converter housed in Package (SM-ChiP™) packages to enable high density, high efficiency, and low cost.

The NBM switches at 1.7 MHz, and with dimensions of 23 mm x 17 mm x 5.2mm, it consumes only a fraction of the space occupied by conventional, slow switching (sub 1 MHz) solutions. The NBM also delivers voltage essentially free of noise without needing external filters, bulk caps, hot swap, or in-rush current limiting. At the same time, conventional solutions typically require a large assortment of discrete components to provide an equivalent operation.

The NBM is packaged in an SM-ChiP package. This package provides a low thermal impedance to both the top and bottom of the package providing easy thermal management.

Fast transient performance is also achieved by the NBM, which responds to transient loads quickly (in 1 microsecond) while maintaining its output within a narrow voltage band. The NBM is also a bidirectional converter that dynamically provides 12 V to 48 V or 48 V to 12 V conversion.

Provides 12 V and 48 V System Integration

The NBM enables efficient bridging between 12 V and 48 V. Automotive, data center, LED lighting, and various industrial applications all have historically utilized 12 V, and more applications are adopting 48 V. In many of these designs, there is a mix of legacy 12 V systems and newer 48 V systems requiring the NBM for high efficiency, high density, and low-cost conversion between these two voltages.