Title :
The Analysis and Research of a High-Stability and High-Accuracy VLDO
Author :
Wang, Fengge ; Wang, Xuewen ; Yu, Lei ; Zhao, Wu
Author_Institution :
Sch. of Inf. & Technol., Northwest Univ., Xi´´an, China
Abstract :
A very low dropout voltage linear regulator (VLDO) with high precision and stability is presented in this paper. With ESR compensation, internal pole-zero compensation and feed-forward compensation can be used for this proposed schematic. In addition, the VLDO loop op-amp, PMOS adjustment module and resistance feedback module are analyzed. Finally the VLDO has been implemented in CSMC 0.5um CMOS process.
Keywords :
compensation; feedforward; load regulation; voltage regulators; CMOS process; ESR compensation; PMOS adjustment module; VLDO loop op-amp; feed-forward compensation; high precision; high-stability; internal pole-zero compensation; resistance feedback; very low dropout voltage linear regulator; Capacitors; Circuit stability; Feedforward neural networks; Poles and zeros; Regulators; Resistance; Stability analysis; ESR; Miller compensation; VLDO; compensation methods; feed-forward;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6880-5
DOI :
10.1109/iCECE.2010.1060
