US 12,072,724 B2
Inrush current of at least one low drop-out voltage regulator
Alexandre Pons, Vizille (FR)
Assigned to STMicroelectronics (Grenoble 2) SAS, Grenoble (FR)
Filed by STMicroelectronics (Grenoble 2) SAS, Grenoble (FR)
Filed on Nov. 5, 2021, as Appl. No. 17/453,815.
Claims priority of application No. 2013087 (FR), filed on Dec. 11, 2020.
Prior Publication US 2022/0187864 A1, Jun. 16, 2022
Int. Cl. G05F 1/575 (2006.01)
CPC G05F 1/575 (2013.01) 20 Claims
OG exemplary drawing
 
1. A device, comprising:
one or more low drop-out voltage regulators;
a first circuit coupled to the one or more low drop-out voltage regulators, the first circuit configured to deliver N set-point voltages to the one or more low drop-out voltage regulators, wherein N is a quantity of the one or more low drop-out voltage regulators, and wherein each of the N set-point voltages is proportional to a first current, the first circuit having an associated resistor for each low drop-out voltage regulator, each resistor configured to conduct a fifth current proportional to the first current, a corresponding set-point voltage being available between terminals of the associated resistor; and
a second circuit coupled to the first circuit, the second circuit configured to generate the first current proportional to a reference current modulated based on a sum of in-rush currents received from the one or more low drop-out voltage regulators.