US 12,248,331 B2
Low-dropout (LDO) regulator with a feedback circuit
Zheng-Jun Lin, Hsinchu (TW); Chung-Cheng Chou, Hsinchu (TW); Yu-Der Chih, Hsinchu (TW); and Chin-I Su, Hsinchu (TW)
Assigned to Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu (TW)
Filed by Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu (TW)
Filed on Jul. 29, 2022, as Appl. No. 17/877,115.
Application 17/877,115 is a continuation of application No. 17/010,064, filed on Sep. 2, 2020, granted, now 11,442,482.
Claims priority of provisional application 62/908,084, filed on Sep. 30, 2019.
Prior Publication US 2024/0036597 A1, Feb. 1, 2024
Prior Publication US 2025/0021120 A9, Jan. 16, 2025
Int. Cl. G05F 1/575 (2006.01); G05F 1/565 (2006.01)
CPC G05F 1/575 (2013.01) [G05F 1/565 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A voltage regulator circuit, comprising:
a voltage regulator configured to provide an output voltage at an output terminal;
a connector connected to the output terminal of the voltage regulator, wherein the connector comprises a plurality of connection nodes spaced along a length of the connector;
a plurality of macros connectable at a plurality of connection nodes; and
a plurality of feedback loops, each feedback loop of the plurality of feedback loops connectable between a connection node of the plurality of connection nodes through a feedback switch associated with the feedback loop and an input terminal of the voltage regulator, wherein the each feedback loop of the plurality of feedback loops, when connected to the connection node of the plurality of connection nodes, is configured to provide an instantaneous voltage of the connection node as a feedback to the voltage regulator, and wherein the voltage regulator is configured to, in response to receiving the instantaneous voltage, adjust an amount of a source current being sinked by a current source at the output terminal of the voltage regulator.