CERN (the European Organization for Nuclear Research) runs the largest particle physics laboratory in the world. Particle accelerators (in particular the Large Hadron Collider, LHC) and detectors are used at CERN to perform state-of-the-art experiments involving the collision of highly energetic particles. The High Luminosity LHC upgrade will allow performing more collisions per second, leading to a larger amount of data that can be collected by the detectors. This upgrade entails higher power consumption of the front-end circuits of the detectors and a minimization of the material used, so to optimize the physics performances of the experiments. Within this context, a specific power distribution system based on two steps of voltage conversion has been proposed, in order to properly supply the front-end circuits.