Title :
A FVF LDO regulator with damping-factor-control frequency compensation for SOC application
Author :
Guoyi Yu ; Yelei Deng ; Xuecheng Zou ; Zhaoxia Zheng
Author_Institution :
Sch. of Opt. & Electron. Inf., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
An output-capacitorless low-dropout regulator (OCL-LDO), which is based on flipped-voltage-follower (FVF) using damping-factor-control (DFC) frequency compensation for SOC application, is presented in this paper. The proposed LDO with 1.2V supply, 100mA load current was designed by SMIC 0.13um standard CMOS process. Simulation results have shown that the LDO can be stable for a load capacitance ranging from 0 to 80pF. The line regulation and load regulation are 3.3mV/V and 62uV/mA, respectively, and the quiescent current consumption is only 27uA. Under maximum load current changes, the overshoots and undershoots are less than 90mV and 140mV, and the recovery time is about 2.5us.
Keywords :
CMOS integrated circuits; damping; frequency control; integrated circuit design; operational amplifiers; system-on-chip; DFC; FVF LDO regulator; OCL; SMIC standard CMOS process; SOC application; capacitance 0 pF to 80 pF; current 100 mA; current 27 muA; damping-factor-control frequency compensation; flipped-voltage-follower; load capacitance; output-capacitorless low-dropout regulator; size 0.13 mum; voltage 1.2 V; Current measurement; Damping; Regulators; Simulation; Solid state circuits; System-on-chip; Voltage control;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2014 12th IEEE International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4799-3296-2
DOI :
10.1109/ICSICT.2014.7021407
