| 一种基于LDO线性稳压器的放大器设计 |
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| 引用本文： | 樊华,冯全源.一种基于LDO线性稳压器的放大器设计[J].半导体学报,2005,26(10). |
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| 作者姓名： | 樊华 冯全源 |
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| 作者单位： | 西南交通大学微电子研究所,成都,610031;西南交通大学微电子研究所,成都,610031 |
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| 摘 要： | 设计了一种地电流约为0.6μA的基于低压差线形稳压器的放大器电路.此放大器的突出优点是与foldback限流保护电路融合在一起,使得芯片不需要专门的限流模块,大大减少了电流支路,实现超低功耗.
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| 关 键 词： | 运算放大器 地电流 LDO foldback过流保护 |
Design of an OP-AMP Based on a LDO Regulator |
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| Fan Hua,Feng Quanyuan.Design of an OP-AMP Based on a LDO Regulator[J].Chinese Journal of Semiconductors,2005,26(10). |
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| Authors: | Fan Hua Feng Quanyuan |
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| Abstract: | An operational amplifier (OP-AMP) with a ground current of about 0.6μA is presented.Moreover,this amplifier reaps the benefits of incorporating a foldback current limiting circuit,which enables the low-dropout voltage regulator without the need of a special current limiting subblock.Therefore,the object of ultra-low power is realized because of a great reduction in transistors and current limbs. |
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| Keywords: | operational amplifier ground current LDO foldback current limiter |
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