Synchronous step-down DC/DC

Once the mains power supply has been efficiently converted from AC to DC, industrial systems often require further DC/DC conversion to procedure the right sub-system supply voltage. This can be as low as 1.2 V for the logic supply voltage for ICs on a motherboard.

Block diagram

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Design considerations

Point of load non-isolated DC-to-DC synchronous buck converter circuit
Economical, two-MOSFET design - low QG(tot) & low FOM for best efficiency
Step-down of voltage while stepping up current

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NextPowerS3 MOSFETs for DC DC buck regulators

Improving switch mode performance by reducing spikes and ringing.

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MOSFET and GaN FET Handbook

Drawing on over 20 years’ of experience, the MOSFET and GaN FET Application Handbook: A Power Design Engineer’s Guide brings together a comprehensive set of learning and reference materials relating to the use of MOSFETs and GaN FETs in real world systems.

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