US 12,393,213 B2
Voltage regulator
Harikrishna Parthasarathy, Bangalore (IN); Khyati Bansal, Sri Ganganagar (IN); Venkatesh Kadlimatti, Hubli (IN); and Kunal Karanjkar, Bangalore (IN)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Jun. 30, 2023, as Appl. No. 18/217,388.
Prior Publication US 2025/0004492 A1, Jan. 2, 2025
Int. Cl. G05F 1/56 (2006.01); G05F 1/565 (2006.01); G05F 1/575 (2006.01); G05F 1/595 (2006.01)
CPC G05F 1/565 (2013.01) [G05F 1/575 (2013.01); G05F 1/595 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A voltage regulator comprising:
an output terminal;
a first transistor including a current terminal and a control terminal, the current terminal of the first transistor coupled to the output terminal;
loop circuitry including a second transistor including a control terminal and a current terminal, the current terminal of the second transistor coupled to the control terminal of the first transistor; and
undershoot detection circuitry including:
a third transistor including a first current terminal and a second current terminal, the first current terminal of the third transistor coupled to the output terminal;
current mirror circuitry including a terminal coupled to the second current terminal of the third transistor; and
inverter circuitry including an input terminal and an output terminal, the input terminal of the inverter circuitry coupled to the terminal of the current mirror circuitry and the second current terminal of the third transistor, the output terminal of the inverter circuitry coupled to the control terminal of the second transistor.