Title | ||
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Dynamic Slew Enhancement Technique For Improving Transient Response In An Adaptively Biased Low-Dropout Regulator |
Abstract | ||
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This brief presents a dynamic slew enhancement technique for improving the transient response in an adaptively biased low-dropout regulator. This is done by introducing FAST and SLOW paths in an adaptive bias loop. The FAST path injects a quick momentary current during a low-to-high load transient, whereas the SLOW path keeps the current large during a high-to-low load step. The dynamic current shoots up to quite a high level as it is combined with adaptive biasing. When the proposed technique is implemented in the 0.18-mu m CMOS technology, the experimental results show the effective reduction in the undershoot (67%) and the overshoot (66.7%) while maintaining a low quiescent current of 1.1 mu A. The settling times during 0-50-mA and 50-0-mA load transients are improved by 74% and 99.9%, respectively. |
Year | DOI | Venue |
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2015 | 10.1109/TCSII.2015.2415311 | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS |
Keywords | Field | DocType |
Current mirror, gain enhancement, low-dropout regulator, low quiescent current, operational transconductance amplifier | Transient response,Logic gate,Control theory,Adaptive bias,Overshoot (signal),Electronic engineering,CMOS,Low-dropout regulator,Fast path,Mathematics,Biasing | Journal |
Volume | Issue | ISSN |
62 | 7 | 1549-7747 |
Citations | PageRank | References |
1 | 0.36 | 6 |
Authors | ||
2 |
Name | Order | Citations | PageRank |
---|---|---|---|
Ashis Maity | 1 | 17 | 4.46 |
Amit Patra | 2 | 97 | 25.22 |