Title :
A 1W 8-ratio switched-capacitor boost power converter in 140nm CMOS with 94.5% efficiency, 0.5mm thickness and 8.1mm2 PCB area
Author :
Pique, Gerard Villar ; Bergveld, Henk Jan ; Karadi, Ravi
Author_Institution :
NXP Semicond., Technol. & Oper., Eindhoven, Netherlands
Abstract :
This paper presents a boost switched-capacitor power converter (SCPC) in 140nm CMOS converting a wide input voltage range (2.6V to 4.2V) to an output voltage of 5V at 1W output power. It achieves the highest applicable number of conversion ratios with the lowest number of floating capacitors to date. With 8 conversion ratios and only 4 small floating capacitors, a high peak efficiency of 94.5%, a very small PCB area of 8.1mm2, and a low thickness of 0.5mm are achieved.
Keywords :
CMOS integrated circuits; power convertors; switched capacitor networks; CMOS; SCPC; boost switched-capacitor power converter; conversion ratios; efficiency 94.5 percent; floating capacitors; power 1 W; size 140 nm; voltage 2.6 V to 4.2 V; voltage 5 V; Batteries; Capacitors; Clocks; Logic gates; Power generation; Switching circuits; Topology;
Conference_Titel :
VLSI Circuits (VLSI Circuits), 2015 Symposium on
Conference_Location :
Kyoto
Print_ISBN :
978-4-86348-502-0
DOI :
10.1109/VLSIC.2015.7231314
