Title :
A new circuit technique for improving transient load regulation in low-voltage CMOS LDOs
Author :
Stanescu, Cornel
Author_Institution :
ON Semicond. Romania S.R.L., Bucharest, Romania
Abstract :
The paper presents a new circuit technique intended to improve the transient load regulation in dual-OTA CMOS LDOs, especially for low input and output voltages. The duration of overshoot that appears during fast transient load regulation is made quite small, improving the recovery of the output voltage when the output current is swept from maximum to minimum within 100ns. The presented technique is simple and needs a small number of additional components. The additional bias current is only few μA.
Keywords :
CMOS analogue integrated circuits; operational amplifiers; voltage regulators; circuit technique; dual-OTA CMOS LDO; low input voltage; low output voltage; low-voltage CMOS LDO; output current; transient load regulation; CMOS integrated circuits; Capacitors; Discharges (electric); Regulators; Transient analysis; Transistors; Voltage control; LDO; OTA; modified buffer; overshoot duration; transient load regulation;
Conference_Titel :
Semiconductor Conference (CAS), 2012 International
Conference_Location :
Sinaia
Print_ISBN :
978-1-4673-0737-6
DOI :
10.1109/SMICND.2012.6400756
