A novel high step-up DC-DC converter is proposed in this paper. In this paper, interleaved inductors are utilized to combine with switched capacitors to generate a simple circuit structure. This topology aims to reduce current stress in low-voltage side further, decrease voltage stress in high-voltage side, and to achieve output voltage regulation with a wide range input. The operating principles and steady-state analyses of 4-phase proposed converter are discussed. Finally, a 200W prototype with 24V input voltage is implemented to verify the performance.