LDO circuit, LDO and SOC system

The embodiment of the invention provides an LDO (Low Dropout Regulator) circuit, an LDO and an SOC (System On Chip) system, which are applied to the technical field of linear voltage regulator circuits. The LDO circuit comprises an amplifier ABG, an amplifier Aref, an amplifier Ax and an LDO main bo...

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Bibliographische Detailangaben
Hauptverfasser:	LIU XIAODONG, HOU HANLIN, LIU ZHIZHE, YIN HONGJIE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONTROLLING PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Beschreibung
Zusammenfassung:	The embodiment of the invention provides an LDO (Low Dropout Regulator) circuit, an LDO and an SOC (System On Chip) system, which are applied to the technical field of linear voltage regulator circuits. The LDO circuit comprises an amplifier ABG, an amplifier Aref, an amplifier Ax and an LDO main body structure, the non-inverting input end of the amplifier ABG is connected with reference current, and the inverting input end of the amplifier ABG is grounded through a resistor RBG2 and is connected with the output end through a resistor RBG1; the non-inverting input end of the amplifier Aref is connected with the output end of the amplifier ABG, and the inverting input end of the amplifier Aref is grounded through a resistor Rref2 and is connected with the output end through a resistor Rref1; the non-inverting input end of the amplifier Ax is connected with the output end of the amplifier ABG, and the inverting input end of the amplifier Ax is grounded through a resistor Rx2 and is connected with the output end