Method and apparatus for providing wideband power regulation to a microelectronic device

A power regulation system for providing regulated voltage to a variable load during steady state and transient load periods, the system comprising:

• a primary regular configured to detect a transient event;
• a controller coupled to the primary regulator and configured to receive an early transient event detection signal, to control the primary regulator during quiescent voltage regulation, and to control the primary regulator during a transient response mode;
• wherein the transient mode response is initiated upon receipt of the early transient event detection signal;
• and
• a plurality of second power regulators, wherein at least one second power regulator is configured to detect the transient event, to provide an early transient event detection signal to the controller, and to directly respond to the transient event by sourcing current to the load when the load increases and sinking current from the load to a ground when the load decreases.