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Full On-Chip CMOS Low-Dropout Voltage Regulator 总被引:2,自引:0,他引:2
Milliken R.J. Silva-Martinez J. Sanchez-Sinencio E. 《IEEE transactions on circuits and systems. I, Regular papers》2007,54(9):1879-1890
This paper proposes a solution to the present bulky external capacitor low-dropout (LDO) voltage regulators with an external capacitorless LDO architecture. The large external capacitor used in typical LDOs is removed allowing for greater power system integration for system-on-chip (SoC) applications. A compensation scheme is presented that provides both a fast transient response and full range alternating current (AC) stability from 0- to 50-mA load current even if the output load is as high as 100 pF. The 2.8-V capacitorless LDO voltage regulator with a power supply of 3 V was fabricated in a commercial 0.35-mum CMOS technology, consuming only 65 muA of ground current with a dropout voltage of 200 mV. Experimental results demonstrate that the proposed capacitorless LDO architecture overcomes the typical load transient and ac stability issues encountered in previous architectures. 相似文献
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设计出一种单片集成可用于锂电池充电的LDO(Low Dropout)线性稳压器.对线性稳压器的工作原理及关键特性进行了分析,此电路基于Cadence Chat0.35umCMOS工艺,并用Cadence对整体电路进行了仿真,仿真结果说明该电路具有高精度、宽电源电压工作范围、低温度系数的优点. 相似文献
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用于LDO稳压器的CMOS基准电压源的设计 总被引:1,自引:0,他引:1
LDO稳压器对其中的基准电压电路较高精度要求和较低静态电流要求是一对矛盾,本文折衷设计了一款简单实用的CMOS电压基准电路。仿真结果显示,基准电路静态电流约为35μA,基准电压的温度系数为±15×10~(-6)/℃;低频时电源抑制比为63 dB,电压调整率为0.005。 相似文献
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设计了一种具有过热保护、限流保护、快速启动等特性的CMOS单片集成超低压差线性稳压器,对其电路结构及其工作原理进行了分析,给出了主要子模块电路的设计方案,提出了设计方法和设计中所需考虑的问题.该稳压芯片,输入电压范围为2.5~6V,输入输出压差的典型值为0.4 mV@1 mA和52 mV@150 mA,电压调整率典型值为0.012 6%/V,负载调整率典型值为0.000 12%,静态电流的典型值为85 μA. 相似文献
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设计并实现了一种最大输出电流为500mA的超低压差的单片CMOS电压调整器,对其电路结构及工作原理进行了分析并给出各子电路模块的设计.提出了一种新的内置频率补偿技术,可实现外接低ESR(串联等效电阻)的输出电容,极大地降低成本和改善瞬态响应,实现了精确的过流保护.采用Vanguard 0.5μm CMOS混合信号工艺进行流片验证,测试结果表明输出压差的典型值为100mV,工作电压范围2.5~7v,电流从10mA到500mA跳变时瞬态最大过冲电压为50mV,转换时间小于1μs. 相似文献
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提出了一种面向片上系统、不依赖片外电容的CMOS低压差稳压器.通过采用片上极点分离技术和片上零极点抵消技术,保证了没有片外电容情况下低压差稳压器的稳定性.芯片通过华润上华0.5/μm CMOS工艺进行了流片.芯片核心区域(不包括焊盘)尺寸为600μm×480μm.输入电压变化造成的输出电压变化偏差在±0.21%以内.静态电流为39.8μA.10kHz处的电源抑制比为-34dB.100Hz和100kHz处的输出噪声电流谱密度分别为1.65和0.89μV/√Hz. 相似文献
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提出了一种面向片上系统、不依赖片外电容的CMOS低压差稳压器.通过采用片上极点分离技术和片上零极点抵消技术,保证了没有片外电容情况下低压差稳压器的稳定性.芯片通过华润上华0.5/μm CMOS工艺进行了流片.芯片核心区域(不包括焊盘)尺寸为600μm×480μm.输入电压变化造成的输出电压变化偏差在±0.21%以内.静态电流为39.8μA.10kHz处的电源抑制比为-34dB.100Hz和100kHz处的输出噪声电流谱密度分别为1.65和0.89μV/√Hz. 相似文献
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文章介绍了一种CMOS双路输出低压差电源。电路设计中,采用E/DNMOS基准,用PMOS管作调整管;电路实现采用1.5μm硅栅自对准E/DCMOS工艺。该低压差电源可提供输出电流为1A的3.3V固定输出(压差为0.6V)和1A可调输出,并具有短路保护和过压保护等功能。 相似文献
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低静态电流低压降CMOS线性稳压器 总被引:3,自引:1,他引:3
设计了一种100 mA低静态电流、低压降CMOS线性稳压器.通过使用与一般线性稳压器相类似的频率补偿方法,这种低压差线性稳压器获得了低静态电流,很好的电源调整率和负载调整率,以及很高的PSRR值.在0.5 μm工艺下的仿真结果表明,其消耗的静态电流只有5 μA,电源调整率和负载调整率分别为0.02 mV/V和0.002 mV/mA;在100 Hz时,其PSRR值为-90 dB,负载电容只有100 pF,可以很容易地集成到电路中. 相似文献
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In this paper, a simple model of a linear voltage regulator circuit, which is suitable to investigate the propagation of EMI through integrated circuit power distribution networks is proposed and it is validated by comparison of model predictions, computer simulations and experimental results. Moreover, application examples of the new model in EMC analysis are given with reference to both susceptibility and emission issues. 相似文献
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A Low-Power High-Frequency CMOS Peak Detector 总被引:3,自引:0,他引:3
给出了一个低功耗、高频CMOS峰值检测电路,可以用于检测射频信号和基带信号的峰值.该电路的设计基于中芯国际0.35μm标准CMOS工艺.理论分析和后仿真结果都表明,在工艺偏差以及温度变化条件下,当输入信号幅度在400mV以上时检测的误差小于2%,检测带宽可达10GHz以上,整个检测电路的静态电流消耗低于20μA. 相似文献
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Russian Microelectronics - A new high-voltage CMOS voltage level converter designed for manufacturing in low-voltage technological processes is presented. The features of the construction,... 相似文献
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This correspondence introduces two circuit ideas which are applied to the design of a voltage to current converter circuit for application in analog CMOS circuits. The ideas are aimed at achieving an output current which is set by a precision reference voltage and achieving a high output impedance without the use of a cascode connection. The resulting circuit achieves a fast settling time and requires a minimum bias headroom voltage, making it suitable for use in low voltage battery-powered designs. 相似文献