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Customer Question LMZ22010TZ/NOPB

In my application, VIN is 15V, Vout will be 5V.  I am not planning on using the enable input.  The enable input is rated to 5.5V max.  There is internal 20M pull-up to VIN on enable.  Question is, is it ok to float the enable line with Vin 15V.  Or I need external voltage divider?