US 12,113,487 B2
Jump-start power amplifier boost converter
Wendy Ng, Los Gatos, CA (US); and James Jason LoCascio, Mountain View, CA (US)
Assigned to Skyworks Solutions, Inc., Irvine, CA (US)
Filed by SKYWORKS SOLUTIONS, INC., Irvine, CA (US)
Filed on Sep. 8, 2022, as Appl. No. 17/930,561.
Application 17/930,561 is a continuation of application No. 17/060,872, filed on Oct. 1, 2020, granted, now 11,476,806.
Claims priority of provisional application 62/910,314, filed on Oct. 3, 2019.
Claims priority of provisional application 62/910,310, filed on Oct. 3, 2019.
Prior Publication US 2023/0073655 A1, Mar. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H03F 1/30 (2006.01); H02M 1/14 (2006.01); H02M 3/157 (2006.01); H02M 3/158 (2006.01); H03F 3/20 (2006.01); H03F 3/24 (2006.01); H04B 1/04 (2006.01); H04B 1/40 (2015.01)
CPC H03F 1/305 (2013.01) [H02M 1/143 (2013.01); H02M 3/157 (2013.01); H02M 3/158 (2013.01); H03F 3/20 (2013.01); H03F 3/24 (2013.01); H04B 1/04 (2013.01); H04B 1/40 (2013.01); H03F 2200/451 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power management integrated circuit comprising:
an output capacitor with a first plate of the output capacitor connected to a powered circuit element configured to obtain power from the power management integrated circuit;
a jump-start circuit configured to connect a second plate of the output capacitor to one of a ground or a supply voltage based at least in part on a determination of a difference between a boost setpoint of a first boost converter and an output voltage of the power management integrated circuit; and
a first switch configured to connect a bias supply between the ground and the supply voltage.