Pulsar Wind Nebulae (PWNe) represent the most numerous population of TeV sources in our galaxy. These sources, some of which emit very-high-energy (VHE) gamma-rays, are believed to be related to the young and energetic pulsars that power highly magnetized nebulae (a few μG to a few hundred μG). In this scenario, particles are accelerated to VHE along their expansion into the pulsar surroundings, or at the shocks produced in collisions of the winds with the surrounding medium. Those energetic pulsars can be traced using observations with the Fermi-LAT detector. The MAGIC Collaboration has carried out deep observations of PWNe around high spin-down power Fermi pulsars. We study the PWN features in the context of the already known TeV PWNe. We present here the analysis accomplished with three selected PWNe: PSR J0631+1036, PSR J1954+2838 and PSR J1958+2845.