A dual-loop shunt regulator using current-sensing feedback techniques

The dual-loop shunt regulator using current-sensing feedback techniques is proposed in this paper. This architecture adopts a voltage and current loops to increase the transient response of the proposed shunt regulator. The maximum output current of the proposed shunt regulator is 180mA at a 1.8V output. Moreover the architecture of the proposed shunt regulator can suppress the stray effect which is from power supply. The prototype of the proposed shunt regulator is fabricated by the Taiwan Semiconductor Manufacturing Corporation (TSMC) 0.35-@mm CMOS 2P4M process. The active area is only 579x355@mm^2.

[1]  Jiann-Jong Chen,et al.  A capacitor-free fast-transient-response LDO with dual-loop controlled paths , 2007, 2007 IEEE Asian Solid-State Circuits Conference.

[2]  Bertan Bakkaloglu,et al.  A CMOS Low-Dropout Regulator With Current-Mode Feedback Buffer Amplifier , 2007, IEEE Transactions on Circuits and Systems II: Express Briefs.

[3]  T. Karnik,et al.  Area-efficient linear regulator with ultra-fast load regulation , 2005, IEEE Journal of Solid-State Circuits.

[4]  Mohammad A. Al-Shyoukh,et al.  A Transient-Enhanced Low-Quiescent Current Low-Dropout Regulator With Buffer Impedance Attenuation , 2007, IEEE Journal of Solid-State Circuits.

[5]  Wing-Hung Ki,et al.  Dual-loop feedback for fast low dropout regulators , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).

[6]  Juha Kostamovaara,et al.  A Capacitor-Free CMOS Low-Dropout Regulator , 2007, 2007 IEEE International Symposium on Circuits and Systems.

[7]  Edgar Sánchez-Sinencio,et al.  Full On-Chip CMOS Low-Dropout Voltage Regulator , 2007, IEEE Transactions on Circuits and Systems I: Regular Papers.

[8]  Tsz Yin Man,et al.  A High Slew-Rate Push–Pull Output Amplifier for Low-Quiescent Current Low-Dropout Regulators With Transient-Response Improvement , 2007, IEEE Transactions on Circuits and Systems II: Express Briefs.

[9]  V. Pouget,et al.  Total Dose and Single Event Transients in Linear Voltage Regulators , 2005, 2005 8th European Conference on Radiation and Its Effects on Components and Systems.

[10]  A. Maxim.  Notice of Violation of IEEE Publication PrinciplesSpur and noise reduction techniques in ring oscillator based frequency synthesizers for broadcast receiver SoCs , 2008, 2008 IEEE Radio and Wireless Symposium.

[11]  A. Kabbani,et al.  Estimation of ground bounce effects on CMOS circuits , 1999 .

[12]  José Antonio Siqueira Dias,et al.  CMOS shunt regulator with bandgap reference for automotive environment , 1994 .