Does the LMZ31710 have OVP protection?
Not indicated on the Datasheet.
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The LMZ31710 has output over-voltage protection. Here is the description from the internal converter IC used in LMZ31710:
Output Overvoltage Protection (OVP)
The device incorporates an output overvoltage protection (OVP) circuit to minimize output voltage overshoot. For
example, when the load current is abruptly reduced from a high value to a low value, the output voltage response
can exceed the OVP trip threshold, especially if the capacitance on the output voltage bus is relatively low value.
The OVP feature minimizes the overshoot by comparing the VSENSE pin voltage to the OVP threshold. If the
VSENSE pin voltage is greater than the OVP threshold the high-side MOSFET is turned OFF, and the low-side
MOSFET is turned ON until the OV is discharged. When the VSENSE voltage drops lower than the OVP
threshold, the high-side MOSFET is allowed to turn ON at the next clock cycle.
During an OVP event, the low-side reverse current limit still applies, and the device does not allow current flow
into the PH pin.