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首页> 外文期刊>Electronics Letters >Power-area-efficient transient-improved capacitor-free FVF-LDO with digital detecting technique
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Power-area-efficient transient-improved capacitor-free FVF-LDO with digital detecting technique

机译:具有数字检测技术的功率区域有效的瞬态改进型无电容FVF-LDO

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摘要

A fast-transient capacitor-free low-dropout regulator (LDO) based on a flipped-voltage-follower (FVF) structure has been designed with the proposed digital detecting technique. By increasing the slewing at the gate of the power transistor through detecting the dynamic changes inside the circuit, load-transient recovery time can be decreased by 99.8%. The quiescent current of the proposed LDO is only 3.9 µA under normal operation. In addition, the circuit maintains a small chip area of 0.04 mm under 0.18 µm CMOS technology since no large RC components are needed to couple the output voltage spikes.
机译:利用提出的数字检测技术,设计了一种基于翻转电压跟随器(FVF)结构的快速瞬态无电容器低压降稳压器(LDO)。通过检测电路内部的动态变化来增加功率晶体管栅极的压摆,可以将负载瞬态恢复时间减少99.8%。正常工作条件下,建议的LDO的静态电流仅为3.9 µA。此外,在0.18 µm CMOS技术下,该电路可保持0.04 mm的小芯片面积,因为不需要大的RC组件来耦合输出电压尖峰。

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