Efficiency improvement for a DC-to-DC buck voltage regulator

摘要

A circuit comprising a first driver having an input, an output and a power input, and a first regulator having an input, an output coupled to the first driver, and an adjustment control configured to control a voltage of the first regulator. A second driver having an input, an output and a power input, and a second regulator having an input, an output coupled to the second driver, and an adjustment control configured to control a voltage of the second regulator. A first impedance coupled to the adjustment control of the first regulator and configured to selectably increase or decrease the voltage of the first regulator.