US 11,658,571 B2
Low power regulator circuit
Wilfried Platzer, Ettenheim (DE); and Matthias Holzinger, Vorstetten (DE)
Assigned to Analog Devices International Unlimited Company, Limerick (IE)
Filed by Analog Devices International Unlimited Company, Limerick (IE)
Filed on Apr. 1, 2020, as Appl. No. 16/837,691.
Prior Publication US 2021/0313884 A1, Oct. 7, 2021
Int. Cl. H02M 3/158 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/158 (2013.01) [H02M 1/00 (2013.01); H02M 1/0032 (2021.05)] 19 Claims
OG exemplary drawing
 
1. A voltage regulator circuit configured to receive an input voltage and generate a first output voltage, the voltage regulator circuit having a shutdown enabled mode, the voltage regulator circuit comprising:
a regulator control circuit configured to control a plurality of switches to generate the first output voltage at a first output node; and
a first feedback path between the regulator control circuit and the first output node, wherein the first feedback path includes a first switch of the plurality of switches, and wherein, during the shutdown enabled mode, the regulator control circuit is configured to open the first switch to disconnect the first feedback path,
wherein, during the shutdown enabled mode, the regulator control circuit is configured to stop generating the first output voltage and couple the input voltage to a second output node and provide a second output voltage different from the first output voltage to the second output node.