High-Efficiency Switched-Capacitor DC-DC Converter with Three Decades of Load Current Range Using Adaptively-Biased PFM

• Published in: Journal of low power electronics and applications Vol. 10; no. 1; p. 5
• Main Authors: Veerabathini, Anurag, Furth, Paul M.
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.03.2020
• Subjects: adaptive biasing; Bandwidths; Capacitors; CMOS; Design; Efficiency; level shifter; Load; Power management; Pulse frequency modulation; Sensors; switched-capacitor; Topology; Transistors; Voltage controlled oscillators; Voltage converters (DC to DC); voltage-controlled oscillator (vco); Wearable computers; Wireless networks

A fully-integrated switched-capacitor (SC) DC-DC converter that steps down 2.0 V to 0.9 V with a peak efficiency of 80% is implemented in a 0.18 μ m CMOS process. An ultra-low-power voltage-controlled oscillator that generates a wide range of switching frequencies is proposed to extend battery runti...