US 12,170,485 B2
Switching regulator circuit
Takahiro Nomiyama, Seoul (KR); and Jong Beom Baek, Yangju-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Oct. 3, 2022, as Appl. No. 17/937,492.
Claims priority of application No. 10-2021-0158838 (KR), filed on Nov. 17, 2021.
Prior Publication US 2023/0155506 A1, May 18, 2023
Int. Cl. H02M 3/158 (2006.01); H02M 1/00 (2006.01); H02M 3/157 (2006.01)
CPC H02M 3/1582 (2013.01) [H02M 1/0025 (2021.05); H02M 1/009 (2021.05); H02M 1/0095 (2021.05); H02M 3/157 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A switching regulator circuit comprising:
an input circuit configured to boost an input voltage and thereby generate an applied voltage, the input circuit including a first circuit part and a second circuit part each including a plurality of input switches;
an inductor having a first end that receives the applied voltage;
a multi-output end circuit including a first unit output end and a second unit output end each connected to a second end of the inductor, each of the first unit output end and second unit output end including at least one output switch;
an error detection circuit configured to generate an error detection current and an error detection voltage based on a first output voltage of the first unit output end and a second output voltage of the second unit output end;
an output switch controller configured to generate an output switch control signal for controlling the output switch based on the error detection voltage and the error detection current;
a mode selector configured to select one of a plurality of operating modes based on the input voltage (VIN) and respective target output voltage for the first or second unit output ends; and
an input switch controller configured to generate an input switch control signal for controlling the input switches based on the selected operating mode,
wherein the first circuit part includes a first flying capacitor and the second circuit part includes a second flying capacitor, and
the input switch controller alternately charges the first flying capacitor and the second flying capacitor according to the input switch control signal, such that the input circuit outputs the applied voltage.