US 12,451,803 B2
Voltage regulator comprising a charge pump circuit
Laura Capecchi, Vedano al Lambro (IT); Marcella Carissimi, Treviolo (IT); Marco Pasotti, Travaco' Siccomario (IT); and Paolo Romele, Cambridge (GB)
Assigned to STMicroelectronics S.r.l., Agrate Brianza (IT)
Filed by STMicroelectronics S.r.l., Agrate Brianza (IT)
Filed on Feb. 1, 2023, as Appl. No. 18/162,870.
Claims priority of application No. 102022000002786 (IT), filed on Feb. 15, 2022.
Prior Publication US 2023/0261574 A1, Aug. 17, 2023
Int. Cl. H02M 3/158 (2006.01); H02M 1/00 (2006.01); H02M 1/08 (2006.01); H02M 3/07 (2006.01)
CPC H02M 3/158 (2013.01) [H02M 1/0025 (2021.05); H02M 1/082 (2013.01); H02M 3/07 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A voltage regulator, comprising:
a charge pump circuit coupled between an input node of the voltage regulator and an output node of the voltage regulator, the charge pump circuit configured to generate an output voltage at the output node based on a respective boosting control signal, the output voltage having a boosted value with respect to an input voltage received at the input node;
a feedback regulation circuit configured to generate a first operation control signal and a second operation control signal as a function of the output voltage;
a phase control circuit configured to generate a boosting control signal as a function of the first operation control signal; and
a filter configured to inject into or sink from the output node, a charge that is a function of the second operation control signal.