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:
Oct. 28, 2003
Filed:
Apr. 01, 2002
Raul A. Perez, Richardson, TX (US);
Baoson Nguyen, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A capacitively compensated voltage regulator, adapted to be supplied with power from a voltage supply, and having an input port and an output port. The voltage regulator includes a voltage regulation circuit responsive to a reference voltage at the input port to provide a regulated voltage at the output port, including a compensation capacitor having a plate connected to a node internal to the voltage regulator, and including a current source coupled between the voltage supply and the internal node. The voltage regulator also includes a low power control circuit responsive to a low power command signal. The low power control circuit includes a delay circuit responsive to a transition in the level of the low power command signal to generate a low power control signal for a predetermined time period after said transition, and also a bypass circuit coupled between the internal node and the voltage supply, responsive to the low power control signal to provide, for the predetermined time period, a current higher than the current provided by the current source, and otherwise to provide substantially no current. By the action of the standby control circuit a voltage overshoot or surge at the output port of the voltage regulator circuit is avoided.