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Step-down switching converter

MP1584 Working Principle

Learn how MP1584 works with an illustrated explanation and practical readings.

MP1584 at a glance

Follow the labeled connections and functional stages

MP1584 working principle: illustrated functional stages, basic circuit and connections
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How it works

3 stages · Explore one step at a time

Step 1 / 3

Store energy

During the on interval, current flows from VIN through the MOSFET and inductor into the output.

Step 2 / 3

Keep current flowing

During the off interval, the Schottky diode conducts from ground into SW, completing the inductor-current path.

Step 3 / 3

Close the loop

FB senses the output divider. COMP and the FREQ resistor shape the response and nominal switching rate.

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