Title :
Cancellation of load regulation in low drop-out regulators
Author :
Dokania, R.K. ; Rincón-Mora, G.A.
Author_Institution :
Georgia Tech Analog Consortium, Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
10/24/2002 12:00:00 AM
Abstract :
A method for cancelling load regulation, based on level shifting the reference, is proposed. In this architecture, the load current is monitored, sensed, and used to dynamically adapt the effective value of the reference voltage. The proposed architecture reduced a 2.5% load regulation droop to a mere 0.2%, without compromising system stability.
Keywords :
Bode diagrams; frequency response; load regulation; poles and zeros; reference circuits; transfer functions; voltage regulators; Bode-plot performance; DC open-loop gain; effective reference voltage value; frequency shaping circuit; load regulation cancellation; low drop-out regulators; pole-zero pair; reference level shifting; transfer function; unit load current change; voltage regulators;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020909
