Hi, Can you please let me the impact of current loading for the attached circuit? The attached circuit is a 4-stage dc-dc converter- charge pump. When I give an input voltage of 1V, the output voltage is around 4.6 V using cadence simulations. The expected output voltage is 5V. I am able to understand and see the increase in the output voltage from stage to stage. But I am unable to understand the impact the current loading. I have attached the circuit and the plots which I got. Can you please let me know the effects of current loading of the above circuit?