Low dropout regulator, power management chip and electronic equipment

• Main Authors: YOON YOUNG-BIN, JEONG SEUNG-HAN, OH JIN-HO, OH NAYEON, SA MI-JIN
• Format: Patent
• Language: Chinese; English
• Published: 23.05.2023
• Subjects: CONTROLLING; PHYSICS; REGULATING; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES

The invention provides a low-dropout linear regulator, a power management chip and electronic equipment, and belongs to the technical field of power electronics, the low-dropout linear regulator is provided with an input voltage end and an output voltage end, and is configured to convert a first voltage input by the input voltage end into a second voltage and output the second voltage through the output voltage end; the low dropout linear regulator comprises a detection module, a switch unit, an overshoot suppression module and a voltage stabilization module. In the initialization stage, the switch unit is switched off under the control of a first control signal, and the overshoot suppression module is configured to suppress the first voltage in the initialization stage so as to enable the second voltage output by the output voltage end to be smaller than a preset value; in the voltage stabilization output stage, the switch unit is switched on under the control of the first control signal, and the voltage sta