US 11,720,130 B2
On-chip power regulation system for MRAM operation
Yen-An Chang, Hsinchu (TW); Chieh-Pu Lo, Hsinchu (TW); Yi-Chun Shih, Taipei (TW); Chia-Fu Lee, Hsinchu (TW); and Yu-Der Chih, Hsinchu (TW)
Assigned to TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED, Hsinchu (TW)
Filed by Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu (TW)
Filed on Aug. 9, 2021, as Appl. No. 17/397,542.
Application 17/397,542 is a continuation of application No. 16/787,506, filed on Feb. 11, 2020, granted, now 11,137,785.
Prior Publication US 2021/0365060 A1, Nov. 25, 2021
Int. Cl. G05F 1/575 (2006.01); G11C 11/16 (2006.01)
CPC G05F 1/575 (2013.01) [G11C 11/1697 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A power regulation system, comprising:
a reference generator;
a temperature compensation circuit coupled to the reference generator; and
a low-dropout (LDO) regulator circuit coupled to the temperature compensation circuit, wherein the temperature compensation circuit provides a reference voltage to the LDO regulator circuit at least based on a ratio of a first current and a second current, wherein the temperature compensation circuit includes a resistor, a first branch of transistors coupled to the resistor, and a second branch of transistors coupled to the resistor.