Title :
A 0.16mm2 completely on-chip switched-capacitor DC-DC converter using digital capacitance modulation for LDO replacement in 45nm CMOS
Author :
Ramadass, Y. ; Fayed, Ayman ; Haroun, Baher ; Chandrakasan, Anantha
Author_Institution :
Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
A completely on-chip switched-capacitor DC-DC converter that occupies 0.16 mm2 is implemented in a 45 nm CMOS process. The converter delivers 8 mA output current while maintaining load voltages from 0.8 to 1 V from a 1.8 V input supply. A digital capacitive modulation scheme is employed to maintain the converter efficiency between 50 to 70% over a wide range of load current levels.
Keywords :
CMOS digital integrated circuits; DC-DC power convertors; switched capacitor networks; CMOS process; LDO replacement; digital capacitance modulation; digital capacitive modulation scheme; onchip switched-capacitor DC-DC converter; size 45 nm; Capacitance; Capacitors; Circuits; Clocks; DC-DC power converters; Digital modulation; Hysteresis; Signal generators; Switching converters; Voltage;
Conference_Titel :
Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2010 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-6033-5
DOI :
10.1109/ISSCC.2010.5433984
