A method for optimizing loop bandwidth in a phase locked loop is provided. A representative power supply waveform having noise is input into a simulation of the phase locked loop; an estimate of jitter is determined; and the loop bandwidth of the phase looked loop is adjusted until the jitter falls below a pre-selected value. Further, a computer system for optimizing loop bandwidth in a phase locked loop is provided. Further, a computer-readable medium having recorded thereon instructions adapted to optimize loop bandwidth in a phase locked loop is provided.