Pengfei Liao, Lin Pu, Kai Luo, Peng Li, Feng Yang, Guoqiang Wang, Xiaozong Huang
{"title":"具有欠调/过调电压检测和瞬态电流增强电路的快速瞬态响应无电容LDO稳压器","authors":"Pengfei Liao, Lin Pu, Kai Luo, Peng Li, Feng Yang, Guoqiang Wang, Xiaozong Huang","doi":"10.1117/12.2685808","DOIUrl":null,"url":null,"abstract":"The traditional capacitor-less LDO is analyzed and a fast-transient response capacitor-less LDO with transient-current enhanced circuit is proposed in this paper. The overshot/undershot voltage can be detected when the load current makes changed, the transient-current enhanced circuit, based on AC couple network, can achieve high charging/discharging current of the gate of power transistor to improve the transient of the LDO. Based on the proposed frequency strategy, the on-chip compensation capacitor required is reduced and the area of the chip is minimized. The circuit is simulated in a 0.13μm standard CMOS and the quiescent current is 30 μA. When the load current changes from 1-50mA at 1μs, the maximum overshot (undershot) voltage is 79mV (46mV) Compared to the LDO without transient enhance circuit, it is improved 60.5% and 58.2%, respectively.","PeriodicalId":305812,"journal":{"name":"International Conference on Electronic Information Technology","volume":"112 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A fast-transient response capacitor-less LDO regulator with undershoot/overshoot voltage detection and transient-current enhanced circuit\",\"authors\":\"Pengfei Liao, Lin Pu, Kai Luo, Peng Li, Feng Yang, Guoqiang Wang, Xiaozong Huang\",\"doi\":\"10.1117/12.2685808\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The traditional capacitor-less LDO is analyzed and a fast-transient response capacitor-less LDO with transient-current enhanced circuit is proposed in this paper. The overshot/undershot voltage can be detected when the load current makes changed, the transient-current enhanced circuit, based on AC couple network, can achieve high charging/discharging current of the gate of power transistor to improve the transient of the LDO. Based on the proposed frequency strategy, the on-chip compensation capacitor required is reduced and the area of the chip is minimized. The circuit is simulated in a 0.13μm standard CMOS and the quiescent current is 30 μA. When the load current changes from 1-50mA at 1μs, the maximum overshot (undershot) voltage is 79mV (46mV) Compared to the LDO without transient enhance circuit, it is improved 60.5% and 58.2%, respectively.\",\"PeriodicalId\":305812,\"journal\":{\"name\":\"International Conference on Electronic Information Technology\",\"volume\":\"112 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-08-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Conference on Electronic Information Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1117/12.2685808\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Conference on Electronic Information Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.2685808","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A fast-transient response capacitor-less LDO regulator with undershoot/overshoot voltage detection and transient-current enhanced circuit
The traditional capacitor-less LDO is analyzed and a fast-transient response capacitor-less LDO with transient-current enhanced circuit is proposed in this paper. The overshot/undershot voltage can be detected when the load current makes changed, the transient-current enhanced circuit, based on AC couple network, can achieve high charging/discharging current of the gate of power transistor to improve the transient of the LDO. Based on the proposed frequency strategy, the on-chip compensation capacitor required is reduced and the area of the chip is minimized. The circuit is simulated in a 0.13μm standard CMOS and the quiescent current is 30 μA. When the load current changes from 1-50mA at 1μs, the maximum overshot (undershot) voltage is 79mV (46mV) Compared to the LDO without transient enhance circuit, it is improved 60.5% and 58.2%, respectively.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
