Non-Isolated DOSA-2 SMT DC-DC Converters TDK-Lambda Non-Isolated DOSA-2 SMT DC-DC Converters feature high power densities, no external tuning components (plug and play), low profiles, and high efficiencies. The product line also offers Edge Plated Castellation (EPC) pads for easy inspection of solder joints. Four series comprise the product family, iCF: 3A/16.5W, iCG: 6A/33W, iBF: 12A/66W, and iAF: 20A/110W. Constant switching frequency of 600 kHz enable a low noise profile and easy EMI filtering. Learn more.