Title :
A 41-phase switched-capacitor power converter with 3.8mV output ripple and 81% efficiency in baseline 90nm CMOS
Author :
Piqué, Gerard Villar
Author_Institution :
NXP Semicond., Eindhoven, Netherlands
Abstract :
This work presents a switched-capacitor power converter (SCPC) with a power density of 38.6mW/mm2 at 81% efficiency and 3.8mV output voltage ripple (ΔV0) in baseline 90nm CMOS. The design implements two different conversion ratios to maximize efficiency for a wide range of input voltages, and the use of 41 phases results in a very low output voltage ripple and low input current spikes.
Keywords :
CMOS integrated circuits; power convertors; switched capacitor networks; 41-phase switched-capacitor power converter; CMOS; output voltage ripple; power density; size 90 nm; voltage 3.8 mV; CMOS integrated circuits; Capacitors; Switches; Switching circuits; System-on-a-chip; Topology; Voltage-controlled oscillators;
Conference_Titel :
Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2012 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4673-0376-7
DOI :
10.1109/ISSCC.2012.6176892
