MP1584Step-down switching converter

MP1584 is a non-synchronous buck converter with an internal high-side MOSFET. An external inductor, Schottky catch diode and capacitors turn its switching waveform into a lower DC voltage; a resistor divider sets the output around a 0.8 V feedback reference. The eight-lead SOIC-8E package has an exposed ground pad underneath. Its current class is 3 A, subject to component selection, board cooling and operating conditions. This reference is for the IC, rather than a particular adjustable module sold around it. The example uses a regulated 12 V input and a nominal 5 V output, with explicit bootstrap, frequency and compensation connections. MPS marks MP1584 as not recommended for new designs and points to MP2338 as an alternative; this page supports understanding and maintaining existing MP1584 designs.