To enable next generation robotic space exploration, innovations within high-step down voltage converters is necessary. This work explores the use of multilevel and hybrid switched capacitor converters which have unique advantages in weight-critical and harsh radiation space environments. A capacitively-isolated Dickson hybrid switched-capacitor converter designed for implementation in a partial power processing high-voltage stepdown converter is presented. The converter operation and design are detailed, with particular attention paid to minimizing the total passive weight. Finally, a 12:1 hardware prototype is presented and experimental results verify operation up to 500 V, with a peak efficiency of over 96%.
