US 12,170,478 B2
Merged power delivery
Alexander B. Uan-Zo-li, Hillsboro, OR (US); Shuai Jiang, San Jose, CA (US); Jamie L Langlinais, Los Gatos, CA (US); Per H. Hammarlund, Sunnyvale, CA (US); Hans L Yeager, Chapel Hill, NC (US); Victor Zyuban, Sunnyvale, CA (US); Sung J. Kim, San Carlos, CA (US); Wei Xu, Cupertino, CA (US); Rohan U. Mandrekar, Sunnyvale, CA (US); Sambasivan Narayan, Saratoga, CA (US); Mohamed H. Abu-Rahma, Mountain View, CA (US); Jaroslav Raszka, Morgan Hill, CA (US); and Robert O. Bruckner, Gilbert, AZ (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Aug. 16, 2022, as Appl. No. 17/820,168.
Prior Publication US 2024/0063715 A1, Feb. 22, 2024
Int. Cl. H02M 1/00 (2007.01)
CPC H02M 1/008 (2021.05) 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a primary voltage regulator circuit configured to generate a primary supply voltage on a primary power supply node;
an integrated circuit including a plurality of functional blocks coupled to a plurality of local supply nodes; and
a plurality of bypass regulator circuits configured to source a plurality of bypass currents to the plurality of local supply nodes, wherein:
the integrated circuit further includes a plurality of local voltage regulator circuits including a particular local voltage regulator circuit configured to source, using the primary supply voltage, a supply current to a corresponding local supply node of the plurality of local supply nodes in response to a determination that a voltage level of the corresponding local supply node is less than a threshold value, and
the particular local voltage regulator circuit includes a low-dropout regulator circuit coupled between the primary power supply node and a given functional block of the plurality of functional blocks.