Paper Info
Title
Design of monolithic low dropout regulator for wireless powered brain cortical implants using a line ripple rejection technique
Abstract
This brief introduces an integrated low dropout regulator for wireless powered brain cortical implants. A line ripple rejection technique is employed to improve the line regulation of the regulator. A fast transient response is ensured to accommodate frequent changes of workload and power. The system is stabilized over the entire load range without using any external compensation capacitors. System modeling and theoretical analysis are conducted to offer a systematic study on the proposed structure. The regulator was fabricated with an IBM 130-nm CMOS process. The active die area is 0.025 mm2. Experimental results show that the power supply rejection ratio remains above 52.8 dB within the interested frequency band. The line regulation is controlled below 0.44% throughout the full input range. The output voltage can recover within 69 ns from a full load current change, with a less than 8.1-mV voltage droop.
Year
DOI
Venue
2010
10.1109/TCSII.2010.2056090
IEEE Trans. on Circuits and Systems
Keywords
Field
DocType
system modeling,power supply rejection ratio,full input range,integrated low dropout regulator,monolithic low dropout regulator,line regulation,brain cortical,entire load range,voltage droop,line ripple rejection technique,full load,output voltage,wireless communication,radio frequency,transient response,voltage regulators,logic gates
Capacitor,Control theory,Line regulation,Electronic engineering,Power supply rejection ratio,Ripple,Mathematics,Voltage regulator,Low-dropout regulator,Dropout voltage,Voltage droop
Journal
Volume
Issue
ISSN
57
9
1549-7747
Citations 
PageRank 
References 
7
0.89
5
Authors
2
Name
Order
Citations
PageRank
Chen Zheng170.89
Dongsheng Ma215724.75