This paper presents a Maximum Current Point Tracking (MCPT) Controller for SIC MOSFET based high power solid state 2 MHz RF inverter for RF driven H− ion source. This RF Inverter is based on a class-D, half-bridge with series resonance LC topology, operating slightly above the resonance frequency (near to 2 MHz). Since plasma systems have a dynamic behavior which affects the RF antenna impedance, hence the RF antenna voltage and current changes, according to change in plasma parameters. In order to continuously yield maximum current through an antenna, it has to operate at its maximum current point, despite the inevitable changes in the antenna impedance due to changes in plasma properties. An MCPT controller simulated using LT-spice, wherein the antenna current sensed, tracked to maximum point current in a close loop by varying frequency of the voltage controlled oscillator. Thus, impedance matching network redundancy is established for maximum RF power coupling to the antenna.