A capacitor-free CMOS LDO regulator with AC-boosting and active-feedback frequency compensation |
| |
| Zhou Qianneng, Wang Yongsheng, Lai Fengchang. A capacitor-free CMOS LDO regulator with AC-boosting and active-feedback frequency compensation[J]. Journal of Semiconductors, 2009, 30(4): 045006. doi: 10.1088/1674-4926/30/4/045006 Zhou Q N, Wang Y S, Lai F C. A capacitor-free CMOS LDO regulator with AC-boosting and active-feedback frequency compensation[J]. J. Semicond., 2009, 30(4): 045006. doi: 10.1088/1674-4926/30/4/045006.Export: BibTex EndNote |
| |
| Authors: | Zhou Qianneng Wang Yongsheng Lai Fengchang |
| |
| Affiliation: | Microelectronics Center, Harbin Institute of Technology, Harbin 150001, China;Microelectronics Center, Harbin Institute of Technology, Harbin 150001, China;Microelectronics Center, Harbin Institute of Technology, Harbin 150001, China |
| |
| Abstract: | A capacitor-free CMOS low-dropout(LDO)regulator for system-on-chip(SoC)applications is presented.By adopting AC-boosting and active-feedback frequency compensation(ACB-AFFC),the proposed LDO enhancement circuit is adopted to increase the slew rate and decrease the output voltage dips when the load current is suddenly switched from low to high.The LDO regulator is designed and fabricated in a 0.6/am CMOS process.The active silicon area is only 770×472μm2.Experimental results show that the total error of the output voltage due to line variation is less than ±0.1 97%.The load regulation is only 0.35 mV/mA when the load current changes fromoto 100mA. |
| |
| Keywords: | low-dropout regulator AC-boosting and active-feedback frequency compensation capacitor-free |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《半导体学报》浏览原始摘要信息 |
|
点击此处可从《半导体学报》下载全文 |
|
