Paper Info
Title
An On-Chip Voltage Regulator with Improved Load Regulation and Light Load Power Efficiency
Abstract
A new single stage driver circuit with improved load regulation is proposed for an on-chip voltage regulator. The improved load regulation was obtained by adding a load dependent extra current at an appropriate node of the driver circuit. Further, a load sensing circuit is proposed for improving the light load power efficiency of the on-chip voltage regulator. The circuit is implemented in 0.11µ CMOS technology. The on-chip voltage regulator generates 1.2V from 1.8V supply. The on-chip voltage regulator load current varies from 0mA to 960mA. Simulation results showed extra offset of 268mV for single stage driver without additional circuitry, where as with additional circuitry the offset was found to be 97mV, when the load current was varied from max to min load. Results also showed up 60% power savings under light load conditions, with only 32% power increase under max load conditions. The proposed circuit is particularly useful for applications with large dynamic range of load current.
Year
DOI
Venue
2006
10.1109/VLSID.2006.46
VLSI Design
Keywords
Field
DocType
improved load regulation,max load condition,additional circuitry,light load,on-chip voltage regulator,on-chip voltage regulator load,proposed circuit,power efficiency,light load power efficiency,driver circuit,load current,light load condition,cmos integrated circuits,integrated circuit design,dynamic range,chip,voltage regulators,voltage regulator
Load bank,Control theory,Computer science,Active load,Electronic engineering,Voltage regulation,Current limiting,Load line,Load regulation,Constant power circuit,Dropout voltage
Conference
ISSN
ISBN
Citations 
1063-9667
0-7695-2502-4
2
PageRank 
References 
Authors
0.79
0
2
Name
Order
Citations
PageRank
R. G. Raghavendra1224.29
Pradip Mandal28423.04