The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 09, 2021
Filed:
Nov. 08, 2018
Texas Instruments Incorporated, Dallas, TX (US);
Raveesh Magod Ramakrishna, Richardson, TX (US);
Sanjeev Manandhar, Tuscon, AZ (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A system includes a low dropout regulator (LDO) circuit. The LDO circuit includes an error amplifier with an input node, a reference node, and an output node. The LDO circuit also includes a pass transistor with a control terminal, a first current terminal, and a second current terminal. The control terminal is coupled to the output node of the error amplifier, the first current terminal is coupled to a voltage source node, and the second current terminal is coupled to an LDO output node. The LDO output node is coupled to the input node of the error amplifier. The LDO circuit also includes a switched-capacitor network coupled between error amplifier and the pass transistor. The switched-capacitor network comprises a pair of switches and a current-controlled oscillator coupled to control terminals of the switches.