Matrix-based power distribution architecture

A power management and distribution (PMAD) system includes first and second power supplies (110), first and second loads (120) and a matrix (130) of solid state power controllers (SSPCs) connected between the first and second power supplies and the first and second loads. The matrix is configured to selectively supply each of the first and second loads with a plurality on different power levels based on on/off states of the SSPCs of the matrix.