LOW-DROPOUT REGULATOR HAVING SOURCING AND SINKING CAPABILITIES

LOW-DROPOUT REGULATOR HAVING SOURCING AND SINKING CAPABILITIES

A low-dropout regulator comprises an output current branch (100) in which a first output driver (110) and a second output driver (120) is arranged. An input amplifier stage (200) provides a first control current (I1) to control the operating state of the first and the second output driver (110, 120)...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Cerchi, Marco, Fiocchi, Carlo
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CONTROLLING
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Beschreibung
Zusammenfassung:A low-dropout regulator comprises an output current branch (100) in which a first output driver (110) and a second output driver (120) is arranged. An input amplifier stage (200) provides a first control current (I1) to control the operating state of the first and the second output driver (110, 120). A current generator unit (300) provides a second control current (I2) to operate the first output driver (110) in the second operating state and provides a third control current (I3) to operate the second output driver (120) in the second operating state, when the first control current (I1) of the input amplifier stage (200) is below a threshold level.