A 316.5nA Quiescent Current of DC–DC Converter with 92.8% Peak Efficiency for a IoT Application

This paper proposes a structure that generates a very low Quiescent Current of DC-DC Converter for use in IoT (Internet of Things) applications, achieves high efficiency, and describes the circuits and algorithm associated therewith. The quiescent current result is approximately 316.5 nA using the method of sensing input voltage, turning off unnecessary blocks, and converting to stand-by mode based on the comparator, and peak efficiency is approximately 92.8% through the proposed DC-DC Converter structure in this paper. The circuit is designed with a Samsung 130nm of BCD (Bipolar CMOS DMOS) process that produces an output voltage of $1.8 \mathrm{V} \sim 4.2 \mathrm{V}$ by DC-DC Converter using a standard supply voltage of $1.8 \mathrm{V} \sim 4.2 \mathrm{V}$.