LINEAR VOLTAGE REGULATOR WITH FAST LOAD REGULATION AND METHOD THEREOF

A linear voltage regulator includes an error amplifier configured to receive an output voltage at an output node and a reference voltage at a reference node and output a first control voltage; a first PMOS transistor configured to receive an input voltage from a power supply node and output a first...

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Bibliographische Detailangaben
1. Verfasser:	Lin, Chia-Liang (Leon)
Format:	Patent
Sprache:	eng
Schlagworte:	AMPLIFIERS BASIC ELECTRONIC CIRCUITRY CONTROLLING ELECTRICITY PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Beschreibung
Zusammenfassung:	A linear voltage regulator includes an error amplifier configured to receive an output voltage at an output node and a reference voltage at a reference node and output a first control voltage; a first PMOS transistor configured to receive an input voltage from a power supply node and output a first output current to the output node in accordance with the first control voltage; an AC coupling capacitor configured to couple the output voltage to an AC coupled voltage; a high-speed amplifier configured to receive the AC coupled voltage and output a second control voltage; a second PMOS transistor configured to receive the input voltage and output a second output current to the output node in accordance with the second control voltage; and a load configured to draw a load current from the output node.