Low power fast settling multi-standard current reusing CMOS fractional-Nfrequency synthesizer

2012 ◽  
Vol 33 (4) ◽  
pp. 045004 ◽  
Author(s):  
Wenfeng Lou ◽  
Peng Feng ◽  
Haiyong Wang ◽  
Nanjian Wu
Keyword(s):  
2010 ◽  
Vol 31 (8) ◽  
pp. 085002 ◽  
Author(s):  
Geng Zhiqing ◽  
Yan Xiaozhou ◽  
Lou Wenfeng ◽  
Feng Peng ◽  
Wu Nanjian

2013 ◽  
Vol 284-287 ◽  
pp. 2526-2530
Author(s):  
Wei Ben Yang ◽  
Chi Hsiung Wang ◽  
Hsiang Hsiung Chang ◽  
Ming Hao Hong ◽  
Jsung Mo Shen

This paper presents a low-power fast-settling low-dropout regulator (LDO) using a digitally assisted voltage accelerator. Using the selectable-voltage control technique and digitally assisted voltage accelerator significantly improves the transition response time within output voltage switched. The proposed LDO regulator uses the selectable-voltage control technique to provide two selectable-voltage outputs of 2.5 V and 1.8 V. Using the digitally assisted voltage accelerator when the output voltage is switched reduces the settling time. The simulation results show that the settling time of the proposed LDO regulator is significantly reduced from 4.2 ms to 15.5 μs. Moreover, the selectable-voltage control unit and the digitally assisted voltage accelerator of the proposed LDO regulator consume only 0.54 mW under a load current of 100 mA. Therefore, the proposed LDO regulator is suitable for low-power dynamic voltage and frequency-scaling applications.


2016 ◽  
Vol 90 (1) ◽  
pp. 165-173 ◽  
Author(s):  
Shamin Sadrafshari ◽  
Mina Hassanzadazar ◽  
Khayrollah Hadidi ◽  
Abdollah Khoei

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