The diode’s breakdown voltage should be rated above thevoltages in the system. The forward current rating should begreater than the designed rms current for the circuit’sinductor. And, of course, the diode needs to be able todissipate enough power to avoid overheating. Choose adevice with a maximum power dissipation specificationlarger than the design requires. ADIsimPower, AnalogDevices’ online power design tool, has a large database ofdiodes and will strive to choose the best one for yourapplication.
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