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TLV767: Part suggestions

Part Number: TLV767
Other Parts Discussed in Thread: TPS7A47

Hi team,

I'm looking for a low cost device with following requirements.

Soft-start function

Vin_min: 4.5V

Vin_max: >21V(Higher than 35V would be more ideal)

Vout: 3.3V

Iout: 0.5A

My customer doesn't want to use buck regulators due to the cost. I think TLV767 matches their requirement but the part cannot support up to 21V.

Is there any device I can refer to for this requirement?

Regards,