The main objective of the paper is to evaluate and demonstrate different simulation tools for the simulation of switch-mode power supplies. Also the modelling process from the design engineer’s point of view is considered. A current-mode controlled DC–DC boost converter in chaotic regime is chosen as an application example because it offers an up-to-date and challenging simulation problem. Simulations carried out with the conventional Spice circuit simulator, switched state-space model implemented in the Matlab/Simulink simulation environment and Power System Blockset extension are compared with each other and also partly with analytical predictions and the results obtained with discrete-time two-dimensional mapping. Experiments are performed to conclude the validity of the simulation results.