External control technique for current limit in LDOs

This paper presents an external control technique for the current limit in LDOs. Using an external resistor, the user can change the current limit within wide domain. This is possible by using a special block which generates the current reference for the current protection block. The block consumes...

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Bibliographic Details
Main Authors: Stanescu, C., Iacob, R., Dinca, C., Profirescu, O.
Format: Conference Proceeding
Language:English
Subjects:
CMOS integrated circuits
CMOS technology
Current measurement
MOSFETs
Resistors
Voltage control
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Description
Summary:This paper presents an external control technique for the current limit in LDOs. Using an external resistor, the user can change the current limit within wide domain. This is possible by using a special block which generates the current reference for the current protection block. The block consumes between 5 and 25μA, and uses the 1.25V voltage reference. This technique was implemented within an adjustable soft-start LDO, built in a 16V CMOS technology.
ISSN:1545-827X
2377-0678
DOI:10.1109/SMICND.2011.6095833