MIC45116 Datasheet, PDF (22/42 Pages) Microchip Technology – 20V/6A DC/DC Power Module

MIC45116
The peak-to-peak inductor current ripple is:
EQUATION 4-4:
I _{L  P P }
=
V_{----O----U----T----}_-----_--V_{----I--N-----M-----A---X------–-----}V_{---O----U----T---}
V_{INMAX}  f_SW  L
The MIC45116 has a 1.0 µH inductor integrated into
the module. In case of a hard short, the short limit is
folded down to allow an indefinite hard short on the
output without any destructive effect. It is mandatory to
make sure that the inductor current used to charge the
output capacitance during soft-start is under the folded
short limit; otherwise the supply will go in hiccup mode
and may not finish the soft-start successfully.
With R26 = 1.62 kΩ and C16 = 15 pF, the typical output
current limit is 8A.
DS20005571A-page 22
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