PASSGATE STRENGTH CALIBRATION TECHNIQUES FOR VOLTAGE REGULATORS

摘要

Systems and methods are provided to regulate a supply voltage of a load circuit. For example, a system includes a voltage regulator circuit that includes a passgate device. The system includes a passgate strength calibration control module which is configured to (i) obtain information which specifies operating conditions of the voltage regulator circuit, (ii) access entries of one or more look-up tables using the obtained information, (iii) use information within the accessed entries to determine a maximum load current that could be demanded by the load circuit under the operating conditions specified by the obtained information, and to predict a passgate device width which is sufficient to supply the determined maximum load current, and (iv) set an active width of the passgate device according to the predicted passgate device width.

主权项

1. A method for regulating a voltage, comprising:
obtaining information that specifies operating conditions of a voltage regulator circuit having a passgate device, which regulates a supply voltage of a load circuit; accessing entries of one or more look-up tables using the obtained information; using information within the accessed entries to determine a maximum load current that could be demanded by the load circuit under the operating conditions specified by the obtained information, and to predict a passgate device width which is sufficient to supply the determined maximum load current; and setting an active width of the passgate device according to the predicted passgate device width.