TPS7A03: Does a very light load affect anything?

Cameron Wutzke

Part Number: TPS7A03
Other Parts Discussed in Thread: TPS7A20

Hey team!

Quick question: would a light load (say 50uA-ish) affect anything around noise and quiescent current?

In my mind it might improve IQ as ground current decreases. Also wanted to make sure there wasn't anything to be worried about for stability and such.

Thanks!

over 1 year ago

0 Juliette over 1 year ago

TI__Mastermind 18466 points

Hey Cameron,

This device is spec'd from 0mA, so I don't expect the light load to have an effect on stability and performance. I will verify with design in case they have any feedback they would like to add.

Best,

Juliette

0 Juliette over 1 year ago

TI__Mastermind 18466 points

Hey Cameron,

This device is spec'd from 0mA, so I don't expect the light load to have an effect on stability and performance. I will verify with design in case they have any feedback they would like to add.

Best,

Juliette

0 Juliette over 1 year ago in reply to Juliette

TI__Mastermind 18466 points

Hey Cameron,

After speaking with design, there is no issue with the 50uA load and the TPS7A03.

As for the ground current, the datasheet has some plots that go down to the 50uA range:

If they want a lower noise part, we would recommend the TPS7A20.

Best,

Juliette

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TPS7A03: Does a very light load affect anything?