TPS7A49: Current limit in Dropout mode

Oba

Part Number: TPS7A49

Hello,

I have a question for TPS7A4901.

According to the below Table 1 in the datasheet, it looks like that Iout is not limited at all by current limit in Dropout mode.

Is this my understanding correct?

Regards,
Oba

+1 Nick Butts over 4 years ago

Hi Oba,

That is not correct. Current limit still works in dropout mode. I tested this in the lab and I believe TPS7A49 has brick wall current limiting.

Regards,

Nick

0 Oba over 4 years ago in reply to Nick Butts

Hello Nick,

Thanks for your test.
Is the current limit value during dropout mode the same as normal operation?

Regards,
Oba

+1 Nick Butts over 4 years ago in reply to Oba

Hi Oba,

Yes I measured the same current limit.

Regards,

Nick

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