Current distribution from different power sources

A method comprising:

• sensing a first current level drawn by a first integrated circuit from a first power domain connected to a first power source having a first voltage level;
• sensing a second current level drawn by a second integrated circuit from a second power domain connected to the first power source;
• determining that a sum of the first current level and the second current level meets a threshold current associated with the first power source;
• electrically connecting a third power domain to supply additional current to the second integrated circuit in response to determining that the sum of the first current level and the second current level meets the threshold current, the third power domain connected to a second power source having a second voltage level that is higher than the first voltage level;
• and
• concurrently supplying the additional current from the third power domain to the second integrated circuit while supplying the threshold current as the sum of the current from the first power domain to the first integrated circuit and the current from the second power domain to the second integrated circuit.

A non-volatile memory device comprising:

• a first power domain that draws power from a first power source having a first voltage level, the first power domain supplies current to an integrated circuit at a regulated voltage level, the first power domain comprising a first plurality of power MOSFETs configured to provide current from the first power source to the integrated circuit;
• a second power domain that draws power from a second power source having a second voltage level that is higher than the first voltage level, the second power domain supplies current to the integrated circuit at the regulated voltage level, the second power domain comprising a second plurality of power MOSFETs configured to provide current from the second power source to the integrated circuit;
• and
• control logic coupled to the first power domain and to the second power domain, wherein the control logic is configured to:
• sense a current level drawn from the first power source during a present clock cycle;
• based on the current level drawn from the first power source during the present clock cycle, select a first number of the first plurality of power MOSFETs and a second number of the second plurality of power MOSFETs to provide current to the integrated circuit during a next clock cycle that follows the present clock cycle;
• maintain the current level drawn from the first power source at or below a threshold current available from the first power source;
• and
• issue a control signal to the first power domain and to the second power domain during the next clock cycle to select the first number of the first plurality of power MOSFETs and the second number of the second plurality of power MOSFETs to provide current to the integrated circuit during the next clock cycle.