JAJSS26A March 2011 – October 2024 LM3481-Q1
PRODUCTION DATA
Observation of the boost converter circuit shows that the average current through the diode is the average load current, and the peak current through the diode is the peak current through the inductor. The diode should be rated to handle more than the inductor peak current. The peak diode current can be calculated using the formula:
In Equation 35, IOUT is the output current and ΔiL has been defined in Figure 7-3.
The peak reverse voltage for a boost converter is equal to the regulator output voltage. The diode must be capable of handling this peak reverse voltage. To improve efficiency, a low forward drop Schottky diode is recommended.