Title :
Exploration of on-chip switched-capacitor DC-DC converter for multicore processors using a distributed power delivery network
Author :
Zhou, Pingqiang ; Jiao, Dong ; Kim, Chris H. ; Sapatnekar, Sachin S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Minnesota, Minneapolis, MN, USA
Abstract :
In this paper, we explore the design of on-chip switched-capacitor (SC) DC-DC converters in the context of multicore processors, using an accurate power grid simulator. Results show that distributed design of SC converters can reduce the IR drop by up to 74% compared to the lumped design, with improved supply voltage. We also demonstrate the usage of SC converters for multi-domain power supply.
Keywords :
DC-DC power convertors; microprocessor chips; switched capacitor networks; IR drop; SC DC-DC converters; distributed design; distributed power delivery network; improved supply voltage; lumped design; multicore processors; multidomain power supply; on-chip switched-capacitor DC-DC converter; power grid simulator; Capacitance; Capacitors; Multicore processing; Power grids; Switches; System-on-a-chip; Voltage control;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2011 IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4577-0222-8
DOI :
10.1109/CICC.2011.6055333
