Reconfigurable digitally-controlled low power SMPS

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Switch-mode power supplies (SMPS) are highly efficient power processing devices providing regulated voltage or current for virtually all electronic applications today. In low-power (LP) devices analog-controlled SMPS operating at switching frequencies between several hundreds of kHz and several MHz have been preferred to more flexible and intelligent digital-controlled solutions. Applications include portable and consumer electronics, computers, lighting system, and numerous other devices consuming power from a fraction to several hundreds of watts. The prevalence of the analog designs comes from the requirements for a fast controller action and simple implementation that, at the high switching frequencies, are challenging to achieve with conventional digital systems.