US 12,074,571 B2
Semiconductor device
Dong Su Kim, Hwaseong-si (KR); and Jun Suk Bang, Yongin-si (KR)
Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Aug. 11, 2022, as Appl. No. 17/885,831.
Claims priority of application No. 10-2021-0140074 (KR), filed on Oct. 20, 2021; and application No. 10-2022-0048675 (KR), filed on Apr. 20, 2022.
Prior Publication US 2023/0122548 A1, Apr. 20, 2023
Int. Cl. H03F 1/02 (2006.01); H02M 1/00 (2006.01); H02M 3/158 (2006.01); H03F 3/24 (2006.01); H03F 3/72 (2006.01)
CPC H03F 1/0227 (2013.01) [H02M 1/0025 (2021.05); H02M 3/158 (2013.01); H03F 3/245 (2013.01); H03F 3/72 (2013.01); H03F 2203/7227 (2013.01)] 20 Claims
OG exemplary drawing
 
9. A semiconductor device comprising:
an output terminal;
a switching converter configured to control an output voltage output from the output terminal based on a first reference voltage and a power supply voltage;
a load capacitor configured to be charged with a voltage corresponding to the output voltage;
a linear amplifier connected to one end of an alternating current (AC) coupling capacitor and configured to control a voltage of the AC coupling capacitor based on a second reference voltage and the power supply voltage;
a first switch configured to control a connection between the output terminal and the load capacitor;
a second switch configured to control a connection between the output terminal and the one end of the AC coupling capacitor; and
a third switch configured to control a connection between the output terminal and another end of the AC coupling capacitor.