TPS63020: Load transient response at boost mode

Hi   Mago,

I guess this waveform is because the oscilloscope did not limit the bandwidth during the measurement.

in most case, transient performance will be a little better in buck mode

Regards

Tao

Hi Tao,

Would it be possible to capture waveform of load transient like figure21 if you have EVM for both w/ bandwidth limit and w/o bandwidth limit?

Best regards,
Shota Mago

Hi  Mago,

yes, if it is not an urgent one, i will do the bench test next monday. how do you think about this?

Regards

Tao

Hi Tao,

That should be fine. Thanks for your support!

Best regards,

Shota Mago

Hi  Mago,

OK ,  i will show you next monday. have a good weekend.

please do not reply this message, or i have to reply again.

Regards

Tao

Hi  Mago,

please take the picture bleow as reference.

Regards

Tao

Hi Tao,

Thank you for capturing the waveform.  It seems that there is overshoot although bandwidth limitation is enabled.

Do you have idea why overshoot occurs when load current increases?

Best regards,

Shota Mago

Hi  Mago,

my mistake.

i capture a new one and please ignore the last.

Regards

Tao

Hi Tao,

What did you change between last one and new one when capturing waveform?

Was GND lead of probe long? Or is there anything parasitic inductance at previous measurement setup?

Best regards,

Shota Mago

Hi  Mago,

in my last test, the position of the probe is reversed.

Regards

Tao