US 11,755,046 B2
Supply voltage regulator
Jayateerth Pandurang Mathad, Bangalore (IN); and Rajat Chauhan, Bangalore (IN)
Assigned to TEXAS INSTRUMENTS INCORPORATE, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Jun. 21, 2021, as Appl. No. 17/353,387.
Application 17/353,387 is a continuation of application No. 16/677,284, filed on Nov. 7, 2019, granted, now 11,079,780.
Application 16/677,284 is a continuation of application No. 16/216,836, filed on Dec. 11, 2018, granted, now 10,503,185, issued on Dec. 10, 2019.
Claims priority of application No. 201841026026 (IN), filed on Jul. 12, 2018.
Prior Publication US 2021/0311515 A1, Oct. 7, 2021
Int. Cl. G05F 1/571 (2006.01); G05F 3/24 (2006.01); G05F 1/59 (2006.01)
CPC G05F 1/571 (2013.01) [G05F 1/59 (2013.01); G05F 3/24 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A circuit comprising:
a control sub-circuit including a transistor;
a first transistor having a first control terminal and first and second current terminals;
a second transistor having a second control terminal and third and fourth current terminals, wherein the second control terminal is coupled to the second current terminal;
a third transistor having a third control terminal and fifth and sixth current terminals; and
a fourth transistor having a fourth control terminal and seventh and eighth current terminals, wherein the fourth control terminal is coupled to the fifth current terminal, the seventh current terminal is coupled to the fourth current terminal, and the eighth current terminal is coupled to the sixth current terminal;
a turn-off sub-circuit coupled to the seventh current terminal, wherein the turn-off sub-circuit is configured to turn off the first transistor responsive to an increase in an input voltage; and
a turn-on sub-circuit coupled to the third and fourth control terminals, wherein the turn-on sub-circuit is configured to turn on the first transistor responsive to a decrease in the input voltage.