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TPS56C215: Question about VREG5

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Part Number:TPS56C215

Hi Team,

1. The operating voltage is from 3.8V, but if Vin is only 3.8V, then how it regular VREG to 4.7V?

2. If VREG decrease to around 3.8V(depends on Vin, but higher than UVLO), then what will happen?

3. Or you recommend to use external bias power for VREG for this kind of condition?

Thank you.

C.T.


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