A Design of a 92.4% Efficiency Triple Mode Control DC–DC Buck Converter With Low Power Retention Mode and Adaptive Zero Current Detector for IoT/Wearable Applications

This paper presents a retention/pulse frequency modulation (PFM)/ pulse width modulation (PWM) mode dc-dc buck converter with adaptive zero current detector (AZCD) and spread spectrum clock generation (SSCG) for IoT/Wearable systems. The proposed dc-dc buck converter is capable of handling loads from 10 μA to 20 mA with high efficiency by applying triple mode (retention mode, PFM mode, and PWM mod...