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TPS62903: Buck recommentdation

Part Number: TPS62903
Other Parts Discussed in Thread: TPS54302

Dear TI,

Here we have a buck DCDC need as below:

1)Vin_min=7V,Vin_max=9V;

2)Iout >=3A;

3)Vout=4V;

4)UVLO =6V or higher(adjustable);

5)Iq<50uA;

6)Cost is sensitive;

Do you have better recommendation? Thank you very much.