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Step-down switching converter

MP1584 Basic Circuit

Build a basic MP1584 circuit with labeled pins, component values and connection guidance.

MP1584 in a circuit

Physical SOIC-8E pin positions with the external power and control networks.

12V MP1584 example with 15uH inductor,Schottky catch diode,22uF output,52.3k/10k feedback,100nF bootstrap,200k FREQ and100k/150pF COMP network.
All ground symbols share one return. Circuit placement illustrates connections, not a high-frequency PCB layout.

Connect it, step by step

Follow the component values and pin connections

Connect the power stage

VIN takes the bypassed 12 V input; SW feeds the inductor and diode cathode.

Add control networks

Connect the output divider, FREQ resistor and COMP series RC.

Complete the return

Ground pin 5 and the underside exposed pad; keep the physical switching loop short.

Component view