DSTN sleep transistor sizing with a new approach to estimate the maximum instantaneous current

Power gating is one of most effective ways to suppress the leakage power in CMOS digital circuits. In this paper, we propose a new method to estimate the maximum instantaneous current (MIC), and derive an analytical model for the MIC of the clusters in distributed sleep transistor network (DSTN) power-gated circuits. Based on this MIC estimation model, we perform ST sizing in DSTN power-gated circuits. Experimental results show that we have achieved higher precision and less runtime.