Session 2-1

A 50.3ns Transient-Response CR-Free SIMO Power Converter
with Adaptive Current Compensation

 

Abstract

A fast-transient, cross-regulation-free, single-inductor multiple-output (SIMO) power converter is proposed. To overcome the inherent drawback of slow load transient response, it employs an adaptive current compensation technique and linear-assisted SIMO architecture, achieving 50.3ns transient response to 270mW load change at 500kHz switching frequency and with 0.35μm CMOS process. The efficiency reaches the peak of 82.8% at 102mW and stays above 70% over the entire 300mW power range.