Title :
Low supply voltage, low quiescent current, ULDO linear regulator
Author :
Bontempo, G. ; Signorelli, T. ; Pulvirenti, F.
Author_Institution :
STMicroelectronics, Catania, Italy
fDate :
6/23/1905 12:00:00 AM
Abstract :
In this paper a new monolithic Ultra Low Drop-Out (ULDO) linear regulator developed in BCD (Bipolar CMOS, DMOS) technology, 5th generation, is described. It is able to deliver an output current up to 5 A with 150 mV drop-out voltage on the series element at a supply voltage down to 2 V The new regulator has been designed to reduce the quiescent and stand-by currents without degradation of the load transients performance and to guarantee an output voltage high accuracy, better than 1%, thanks to a new trimming structure. 200 μA quiescent current and a very low stand-by current, up to 2 μA, make the devices suitable for microprocessor applications such as Pentium, cellular phones, automotive and in all applications where power management and stand-by features are needed
Keywords :
BIMOS integrated circuits; analogue integrated circuits; reference circuits; transient response; voltage regulators; 150 mV; 2 V; 2 muA; 200 muA; 5 A; BCD technology; ULDO linear regulator; bandgap reference; load transients performance; low quiescent current; low stand-by current; low supply voltage; microprocessor applications; monolithic linear voltage regulator; power management; trimming structure; ultra low dropout linear regulator; voltage regulation loop circuit; Automotive engineering; Batteries; CMOS technology; Cellular phones; Charge pumps; Industrial electronics; Low voltage; Power system transients; Regulators; Resistors;
Conference_Titel :
Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on
Print_ISBN :
0-7803-7057-0
DOI :
10.1109/ICECS.2001.957766
