TPS61120: TPS61120

Florian THIMON

Part Number: TPS61120

Dear TI support team,

On some component when Vbat is supplied by a CC 3,3V voltage we get the ripple on Vout in AC measurement and 3,3V in CC measurement. However we have other components which do not have these ripples altougth the 3,3V in CC measurement is.

Could you tell me which state is the normal one?

over 2 years ago

0 Zack Liu over 2 years ago

TI__Mastermind 34201 points

Hi Florian,

Sorry I don't understand your question. How much Vout AC ripple do you see? Could you share the waveform?

0 Florian THIMON over 2 years ago in reply to Zack Liu

Prodigy 10 points

Hi Zack,

Sorry the the misunderstanding.

Below is the waveform of the Vout AC ripple.Vout is about between ~50mV and ~100mV for some components. Others components does not have ripple and Vout AC is about ~10mV.

Let me know if you need more detail.

Best regards,

0 Zack Liu over 2 years ago in reply to Florian THIMON

TI__Mastermind 34201 points

Hi Florian,

Thank you for the explanation.

If I understand correctly, you saw the 50mV~100mV Vout ripple on some TPS61120 output voltage. The rest TPS61120 output ripple is only 10mV. Is it correct?

Could you share the schematic and layout? Is there any difference on the BOM, layout?

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TPS61120: TPS61120