US RE50,353 E1
Circuits and methods for hybrid 3:1 voltage regulators
Hans Meyvaert, Leuven (BE); Zhipeng Li, Fremont, CA (US); Alberto Alessandro Angelo Puggelli, Cupertino, CA (US); and Thomas Li, Mountain View, CA (US)
Assigned to Lion Semiconductor Inc., Austin, TX (US)
Filed by Lion Semiconductor Inc., Austin, TX (US)
Filed on Mar. 16, 2022, as Appl. No. 17/696,379.
Application 17/696,379 is a reissue of application No. 15/895,893, filed on Feb. 13, 2018, granted, now 10,601,311, issued on Mar. 24, 2020.
Int. Cl. H02M 3/07 (2006.01); G11C 5/14 (2006.01)
CPC H02M 3/07 (2013.01) [G11C 5/145 (2013.01); H02M 3/073 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A circuit for a voltage regulator, comprising:
an inductor having a first side coupled to an input voltage and having a second side;
a first flying capacitor having a first side and having a second side;
a second flying capacitor having a first side and having a second side; and
a plurality of switches , [ ; and
a controller that controls the plurality of switches and to switch between the first state and a second state, ]
wherein:
in a [ the ] first state, the plurality of switches connect:
the second side of the inductor to the second side of the first flying capacitor and an output node;
the first side of the first flying capacitor to the first side of the second flying capacitor; and
the second side of the second flying capacitor to a voltage supply,
in a [ the ] second state, the plurality of switches connect:
the second side of the inductor to the first side of the second flying capacitor;
the second side of the second flying capacitor to the output node and the first side of the first flying capacitor; and
the second side of the first flying capacitor to the voltage supply.