  We investigate a hybrid metallic island / single dopant electron pump based
on fully-depleted silicon on insulator technology. Electron transfer between
the central metallic island and the leads is controlled by resonant tunneling
through single phosphorus dopants in the barriers. Top gates above the barriers
are used control the resonance conditions. Applying radio frequency signals to
the gates, non-adiabatic quantized electron pumping is achieved. A simple
deterministic model is presented and confirmed by comparing measurements with
simulations.
