一种低静态电流、高稳定性的LDO线性稳压器
A Low-dropout Regulator with Low Quiescent Current and High Stability
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摘要: 该文提出了一种低静态电流、高稳定性低压差(LDO)线性稳压器。LDO中的电流偏置电路产生30nA的低温度漂移偏置电流，可使LDO的静态工作电流降低到4A。另外，通过设计一种新型的动态Miller频率补偿结构使得电路的稳定性与输出电流无关，达到了高稳定性的设计要求。芯片设计基于CSMC公司的0.5m CMOS混合信号模型，并通过了流片验证。测试结果表明，该稳压器的线性调整和负载调整的典型值分别为2mV和14mV；输出的最大电流为300mA；其输出压差在150mA输出电流，3.3V输出电压下为170mV；输出噪声在频率从22Hz到80kHz间为150VRMS。Abstract: An unconditionally stable low-dropout regulator and low quiescent current is presented. The Low DropOut ( LDO) based on a high precision CMOS current reference, which is comprised of subthreshold transistors and has small temperature coefficient, provides a low quiescent current of approximately 4A. Furthermore, by utilizing the design method of active Miller frequency compensation, the proposed LDOs stability is independent of the load or the Equivalent Series Resistance (ESR) of the off-chip capacitor. The chip design is based on 0.5#61549;m CMOS mixed-signal process of CSMC. The simulation and experimental results show that the line and load regulations are only 2mV and 14mV, respectively. The dropout voltage is only 170mV at 150mA output current when output voltage is 3.3V. The output noise is 150VRMS when frequency range is from 22Hz to 80 kHz.
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Leung K N, Mok P K T. A capacitor-free CMOS low-dropout regulator with damping-factor-control frequency compensation[J].IEEE Journal of Solid-State Circuits.2003, 38(10):1691-1720[2]Leung K N, Mok P K T, Ki W H. A novel frequency compensation technique for low-voltage low-dropout regulator. IEEE International Symposium on Circuits and Systems, Florida: Orlando, May 1999, Vol.5: 102-105.[3]Kwok K C, Mok P K T. Pole-zero tracking frequency compensation for low dropout regulator. IEEE International Symposium on Circuits and Systems, Arizona: Scottsdale, May 2002, vol. 4: 735-738.[4]Rincon-Mora G A, Allen P A. A low-voltage, low quiescent current, low drop-out regulator[J].IEEE J. of Solid-State Circuits.1998, 33(1):36-44[5]Chava C K, Silva-Martnez J. A frequency compensation scheme for LDO voltage regulators[J].IEEE Trans. on Circuits Syst. I: regular paper.2004, 51(6):1041-1050[6]Lee C K, Park H J. All-CMOS temperature independent current reference[J].Electronics Letters.1996, 32(14):1280-1281[7]Leung K N, Mok P K T. Analysis of multistage amplifier-frequency compensation[J].IEEE Trans. on Circuits Syst. I: Fund. Theory Appl.2001, 48(9):1041-1056[8]Razavi B. Design of Analog CMOS Integrated Circuits. Boston, MA: McGraw-Hill, 2001: 361-371.[9]Rincon G A. Active capacitor multiplier in Miller compensated circuits[J].IEEE J. of Solid-state Circuits.2000, 35(1):26-32[10]Thandri B K, Silva-Martinez J. A robust feedforward compensation scheme for multistage operational transconductance amplifiers with no Miller capacitors[J].IEEE J. of Solid-State Circuits.2003, 38(2):237-243[11]Fan Xiaohua, Mishra C. Single Miller capacitor frequency compensation technique for low-power multistage amplifiers[J].IEEE J. of Solid-State Circuits.2005, 40(3):584-592 期刊类型引用(10)
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