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In this paper, a novel control technique i.e., Single-loop Adaptive Control (SA) for DC-DC buck converters is proposed. Initially, the nominal system of the DC-DC buck converter without considering the parametric uncertainties is built to develop the SA. Adaptive and back stepping control approaches are used to build the proposed technique. The proposed control strategy is analyzed for load variations and also for change in reference voltages. The advantages and disadvantages of the proposed control strategy are compared, analyzed and a conclusion is drawn