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Step-down switching converter

MP1584 Internal Circuitry

Explore the internal circuitry and functional stages of MP1584.

Inside MP1584

A compact functional cutaway of the current-mode buck controller.

MP1584 package cutaway showing high-side MOSFET,current sense,oscillator,feedback,error amplifier,driver and protection.
Functional architecture inside the package; external inductor and catch diode remain outside.

Explore the circuit

Select a stage to see its role and connections

Compare and control

The 0.8 V reference and error amplifier process the FB voltage.

Switch the high side

A bootstrap-powered driver operates the integrated MOSFET.

Limit abnormal operation

Current limiting, UVLO, soft start and thermal control constrain the power stage.

Component view