The similar parameters (Temp., Tint) can be used in RAW converter. Physically, the rebalancing is performed by channel scaling to RGB. I. e. the channels are divided or multiplied by some small factor. Any RAW converter in general does just the same. There is the flow chart below. If in the program settings, the option Clip to white is activated (enabled by default), then the flood control works there. I.e. if after multiplying one of the channels has achieved the maximum value the other channels are scaled additionally in order to maintain the required tint.