SEA05 Advanced Constant Voltage/Current Controller STMicroelectronics SEA05 Advanced Constant Voltage/Constant Current Controller is a highly integrated solution for SMPS applications requiring a dual control loop to perform CV (constant voltage) and CC (constant current) regulation. The SEA05 Advanced Constant Voltage/Constant Current Controller integrates a voltage reference, two op-amps (with OR-ed open-drain outputs), and a lowside current sensing circuit. The voltage reference of the STMicroelectronics SEA05 Advanced Constant Voltage/Constant Current Controller, along with one op-amp, is the core of the voltage control loop, the current sensing circuit and the other op-amp make up the current control loop.