A refrigeration system for cooling a logic module includes an evaporator housing including an evaporator block in thermal communication with the logic module. The architecture can be integrated in CMOS technology and can be applied to various applications, including monolithic integration of high-voltage display driver circuits in battery-powered applications. The locking element has a feeler portion for detecting a fastening element in the receiving space and a locking part for blocking the displacement of the muzzle part relative to the housing in a locking position when a fastening element is not detected in the receiving space by the feeler portion. The configuration registration unit stores configuration data for setting data logic of the logic circuit unit.