DocumentCode
549851
Title
A fully-integrated system power aware LDO for energy harvesting applications
Author
Lüders, M. ; Eversmann, B. ; Gerber, J. ; Huber, K. ; Kuhn, R. ; Schmitt-Landsiedel, D. ; Brederlow, R.
Author_Institution
Munich Univ. of Technol., Munich, Germany
fYear
2011
fDate
15-17 June 2011
Firstpage
244
Lastpage
245
Abstract
A digitally enhanced low dropout regulator (LDO) supplying the digital core of an ultra-low-power MCU is presented. By making use of known system power information the LDO digitally adapts its maximum current drivability up to 2.56 mA while its quiescent current is as low as 650 nA in light load conditions. In this way, the LDO current efficiency remains above 97% over two decades of load current. Energy required for start-up is minimized by drastically reducing capacitance at the LDO output.
Keywords
energy harvesting; current 2.56 mA; current 650 nA; energy harvesting; fully-integrated system power aware low dropout regulator; load current; ultra-low-power MCU; Capacitance; Clocks; Current measurement; Regulators; Switches; Topology; Transient analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
VLSI Circuits (VLSIC), 2011 Symposium on
Conference_Location
Honolulu, HI
ISSN
2158-5601
Print_ISBN
978-1-61284-175-5
Type
conf
Filename
5986129
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