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TPD6S300: Sourcing VPWR from TPS25740 VAUX

Part Number: TPD6S300
Other Parts Discussed in Thread: TPS25740,

Can I power the TPD6S300 VPWR input from the TPS25740(_|A|B) VAUX?

The TPD6S300 requires between 90uA and 135uA whereas the VAUX says it can source 25uA, but over-current doesn’t kick in until 5mA.

  • Hi Rojo,

    Thank you for your question. It's NOT recommended to power the TPD6s300 with the TPS25740 VAUX pin per the datasheet. The VAUX pin should NOT be loaded externally with more than 25uA of current, and the TPD6s300 requires much more than 25uA. I hope this helps :-)