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Please explain the disadvantages when the inductance of an inductor is increased in order to reduce the ripple current ΔIL of a DC/DC converter, and conversely, the advantages of reducing the inductance.
Problems when the L value is increased include the need to increase the capacitance of the output capacitor in order to maintain load response performance, and the fact that the inductor size is increased. When the L value is reduced, there is the problem that the ripple voltage is increased. When using an extremely small L value, the ripple current is increased, so that it is necessary to confirm that the overcurrent detection value of the power supply IC is not reached during normal operation.