For a 5V to 12V application, the DC is 58.3% indicating that the LT1930A could be used. A 5V to 24V application has a DC of 79.2% making the LT1930 the right choice. The LT1930A can still be used in applications where the DC, as calculated above, is above 75%. However, the part must be operated in the discontinuous conduction mode so that the actual duty cycle is reduced.
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