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BQ51013B: Is diode recommended between the BQ51013B output and BQ24250 input?

Part Number: BQ51013B
Other Parts Discussed in Thread: BQ24250, , BQ24040

Maybe this question is more appropriate for the BQ24250 forum?

Is it a recommended practice to add a schottky diode in circuit between the BQ51013B output and BQ24250 input in a wireless battery charging circuit?  Or, is this extra part not needed?  I am looking at a schottky diode that has approximately 300millivolts Vf at 1A at 25C.  I see that the min Vin for the BQ24250 is 4.35V.  5V - 0.3= 4.7V.  This is a very small margin, so I wonder if not including the diode is ok.