JITTER CONDITIONING DEVICE FOR FEEDBACK CONTROL LOOP CIRCUIT, AND JITTER CONDITIONER TOPOLOGY FOR SWITCHING MODE DC-DC CONVERTERS, AND METHODS OF MAKING THE SAME

摘要

A jitter conditioner comprises a substantial value of ESR coupled in series with a broadband attenuator is introduced into a feedback control loop circuit to provide increased angle and noised reduced feedback signal ramps going into the feedback control loop. When the jitter conditioner is introduced in the averaging filter circuit of a switching mode DC-DC converter, the jitter conditioner reduces the switching noise jitter (SNJ) signature and overall noises at the output of the DC-DC converter.