Datasheet

WPMDL9500xx / 17395xx78
MagI
3
C Power Module
FDSM - Fixed Step Down Regulator Module
PROTECTIVE FEATURES
Overvoltage transient protection
This protection mode minimizes the occurance of output voltage overshooting. Once the output voltage reaches
an overvoltage threshold the switching from Vin will be stopped immediately via the high side FET. When the
output voltage falls below the overvoltage trip the high side FET will be enabled again.
Thermal shutdown
When the junction temperature exceeds a specific value the device stops switching until the junction tempera-
ture falls below this value.
Cycle by cycle current limiting
When the current through the high-side FET exceeds the current limit stated in the electrical specification the
high side FET will stop the current flow until the following cycle.
Short circuit protection
The short circuit protection is realized via the cycle by cycle current limiting. The short circuit protection is indefi-
nite with a recovery at the following switching cycle if the short circuit is removed.
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Würth Elektronik eiSos GmbH & Co. KG - Data Sheet - Rev 1.0