| CPC G05F 1/56 (2013.01) | 20 Claims |
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1. A method comprising:
providing a voltage setpoint to a voltage converter wherein the voltage setpoint is indicative of a target output voltage of the voltage converter;
generating an output voltage at a voltage rail with the voltage converter based on the voltage setpoint;
when the voltage setpoint is transitioning from a first voltage setpoint to a second voltage setpoint that has a lower magnitude than the first voltage setpoint, providing a first constant current to a first node coupled to a control terminal of an output transistor to turn on the output transistor, wherein the output transistor comprises a source terminal coupled to a first terminal of a first resistor, and a drain terminal coupled to a first terminal of a load, wherein a second terminal of the first resistor is coupled to a second terminal of the load, and wherein a current path of the output transistor is coupled to the voltage rail;
when the voltage setpoint is transitioning from the first voltage setpoint to the second voltage setpoint, turning off a fifth transistor having a current path coupled between the first node and the second terminal of the first resistor;
when the voltage setpoint is transitioning from the first voltage setpoint to the second voltage setpoint, turning on a seventh transistor comprising a control terminal coupled to the first node, wherein a current path of the seventh transistor is coupled between a control terminal of the fifth transistor and the voltage rail; and
turning off the output transistor after the output voltage reaches the target output voltage corresponding to the second voltage setpoint.
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