Patent ID: 11860658
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. A regulating circuit comprising:
a first direct current-direct current (DC-DC) converter configured to generate a first supply voltage;
a switching circuit including a first switch and a second switch, the first switch configured to connect or disconnect an output end of the first DC-DC converter to a first node and the second switch configured to connect or disconnect the output end of the first DC-DC converter to a second node based on a mode setting signal;
a first low drop output (LDO) regulator configured to provide an output voltage to an output node by regulating the first supply voltage on the first node;
a second LDO regulator directly connected to the first node, the second LDO regulator configured to maintain a level of the first supply voltage by supplying a current to the first node when the first DC-DC converter is not connected to the first node and connected to the second node and supplies the first supply voltage to the second node; and
a second DC-DC converter configured to generate a second supply voltage,
wherein the switching circuit further includes a fourth switch and a fifth switch, the fourth switch configured to connect or disconnect an output end of the second DC-DC converter to the second node and the fifth switch configured to connect or disconnect the output end of the second DC-DC converter to a third node based on the mode setting signal.