Abstract: Methods and/or associated devices and/or systems for providing power management in electronic circuits, including custom ICs, programmable logic devices, and application specific integrated circuits (ASICs) places portions of various power management solutions in the I/O ring or in I/O macros. The invention has numerous specific embodiments and applications to a wide variety of ICs and logic or other circuit design components including circuit modules, software descriptions of circuit modules and/or design or simulation or test systems for circuit development.