Title :
On-chip DC-DC converter for IP-level dynamic voltage scaling
Author :
Ichihashi, Motoi ; Lhermet, Hélène ; Beigné, Edith ; Rothan, Frédéric ; Belleville, Marc ; Amara, Amara
Author_Institution :
CEA-Leti, MINATEC, Grenoble, France
fDate :
June 28 2009-July 1 2009
Abstract :
This paper proposes an on-chip dc-dc converter for a fine grain IP-level DVS. Linear and switching regulators are compared considering this particular application. The chosen buck converter operates with the I/O power supply and uses two discrete devices, a capacitor and an inductor. A test design adaptable to the various operation modes of a logic block is described. Simulation results of the proposed dc-dc converter demonstrate that the maximum power efficiency is over 90% and the leakage current is reduced down to 84 nA.
Keywords :
CMOS logic circuits; DC-DC power convertors; CMOS process; IP-level dynamic voltage scaling; buck converter; capacitor; current 84 nA; fine grain IP-level DVS; inductor; leakage current; logic block; on-chip dc-dc converter; power efficiency; Buck converters; Capacitors; DC-DC power converters; Dynamic voltage scaling; Inductors; Logic devices; Logic testing; Power supplies; Regulators; Voltage control; DC-DC converter; DVS; SoC; System on Chip;
Conference_Titel :
Circuits and Systems and TAISA Conference, 2009. NEWCAS-TAISA '09. Joint IEEE North-East Workshop on
Conference_Location :
Toulouse
Print_ISBN :
978-1-4244-4573-8
Electronic_ISBN :
978-1-4244-4574-5
DOI :
10.1109/NEWCAS.2009.5290463
