Title :
A Multi-Stage Interleaved Synchronous Buck Converter with Integrated Output Filter in a 0.18/spl mu/ SiGe process
Author :
Abedinpour, S. ; Bakkaloglu, Bertan ; Kiaei, S.
Author_Institution :
Freescale Semicond., Tempe, AZ
Abstract :
A fully integrated 0.18mum SiGe synchronous buck DC/DC converter with an on-chip LC output filter supporting a maximum output current of 200mA and efficiency of 64% is presented. The converter utilizes a 10mum-thick electroplated copper layer for integrated inductors and gate capacitors. High switching frequency of 45MHz, multi-phase interleaved operation, and fast hysteretic control reduces the filter inductor and capacitor sizes by two orders of magnitude enabling a fully integrated converter
Keywords :
BiCMOS integrated circuits; DC-DC power convertors; Ge-Si alloys; filters; 0.18 micron; 10 micron; 200 mA; 45 MHz; BiCMOS technology; SiGe; gate capacitors; integrated inductors; integrated output filter; multistage interleaving; synchronous buck converter; Buck converters; Capacitors; Copper; DC-DC power converters; Filters; Germanium silicon alloys; Hysteresis; Inductors; Silicon germanium; Switching frequency;
Conference_Titel :
Solid-State Circuits Conference, 2006. ISSCC 2006. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0079-1
DOI :
10.1109/ISSCC.2006.1696189
