US 12,147,255 B2
LDO/band gap reference circuit
Szu-Chun Tsao, Hsinchu (TW); Jaw-Juinn Horng, Hsinchu (TW); Bindu Madhavi Kasina, Hsinchu (TW); and Yi-Wen Chen, Hsinchu (TW)
Assigned to Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu (TW)
Filed by Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu (TW)
Filed on Apr. 6, 2023, as Appl. No. 18/296,474.
Application 18/296,474 is a continuation of application No. 17/458,707, filed on Aug. 27, 2021, granted, now 11,669,115.
Prior Publication US 2023/0244258 A1, Aug. 3, 2023
Int. Cl. G06F 1/26 (2006.01); G05F 1/46 (2006.01); G05F 3/26 (2006.01); G05F 3/30 (2006.01)
CPC G05F 1/468 (2013.01) [G05F 1/461 (2013.01); G05F 1/465 (2013.01); G05F 3/262 (2013.01); G05F 3/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A circuit comprising:
an output driver including:
a voltage divider;
an output driver transistor; and
an output transistor having a first terminal electrically coupled to a first terminal of the output driver transistor and a second terminal electrically coupled to a first terminal of the voltage divider;
a voltage regulator circuit electrically coupled to the output driver;
a power control circuitry transistor electrically coupled to the output driver; and
a power down control circuit having a first output comprising a constant voltage output that is electrically coupled to the output transistor.