Modern DC-DC resonant converters are normally build around a voltage-source series-resonant converter. This study aims to facilitate the practical use of current-source parallel-resonant converters due to their outstanding properties. To this end, the study presents a sliding-mode control scheme, which provides the following features to the closed-loop system: 1) high robustness to external disturbances and parameter variations and 2) fast transient response during large and abrupt load changes. In addition, a design procedure for determining the values of the control parameters is presented. The theoretical contributions of the paper are experimentally validated by selected tests on a laboratory prototype