Circuit and method for direct current (DC)-DC voltage converter with adaptive charge transfer

A method, comprising:

• delivering, by a voltage converter, a first packet of electric charge via an inductor to an output capacitor;
• monitoring, by an adaptive timer circuit of the voltage converter, a magnitude of an output voltage of the voltage converter, after delivering the first packet;
• selecting, by the adaptive timer circuit of the voltage converter, a duration of a second packet of electrical charge, based on a duration of the first packet and based on the output voltage;
• and
• delivering, by the voltage converter, the second packet of electric charge via the inductor to the output capacitor.

An adaptive timer circuit, comprising:

• a comparator, configured to determine whether a voltage of an output node of a voltage converter is greater than a voltage threshold;
• an up/down counter coupled to the comparator, the up/down counter configured to:
• increment the up/down counter, in response to the comparator determining that the voltage of the output node is less than or equal to the voltage threshold;
• and
• decrement the up/down counter, in response to the comparator determining that the voltage of the output node is greater than the voltage threshold;
• and
• a current control coupled to the up/down counter, the current control configured to output a control current based on the up/down counter.