TPS63020: Ultra low power application.

Hi  Daniel,

I think you are correct, it should be much smaller than 5.28mA, considering the leakage current of external device.

is it possible that PS/SYNC is high in your application?

Regards

Tao

Hi Tao,

Thanks for reply.

Yes, in the typical application connects VINA, EN and PS/SYNC all together to a capacitor to GND.
VINA it's internally connected to VIN with a resistor,  page 9.
Then, do you think that the "high current" is produced by isn't enable PS mode?

Regards!

Hi  Daniel,

Yes, correct. this high consumption is caused by FPWM mode. more operation current, more switching and conduction loss of FET internal, and also, more DC and AC loss for inductor.

Regard

Tao