TPS63031: Power off issue at output

Alone173

Part Number: TPS63031

Hi
i have an issue when make a power board with TPS63031DSKR
When i turn off , it still have 0.5V at output ( while turn on is 3.3V is OK)

Power from battery 4.2V , 2000mah

Please help to solve this issue.

over 3 years ago

0 Tao Zhang over 3 years ago

TI__Mastermind 25335 points

Hi Alone,

Could you help to capture waveform of PIN Vin EN and output during this issue?

Regards

Tao

0 Alone173 over 3 years ago in reply to Tao Zhang

Expert 1225 points

Hi
im sorry for delay for sending waveform

As you seen, when EN pin low, output have still 0.5V
when high, output have 3.3V.
Please send me message , i will help to send you full my design schematic to review

Thanks.

0 Tao Zhang over 3 years ago in reply to Alone173

TI__Mastermind 25335 points

Hi alone,

I have an email sent to you, please check it.

0 Alone173 over 3 years ago in reply to Tao Zhang

Expert 1225 points

hi
i got it, will send to you today.

Thanks

0 Tao Zhang over 3 years ago in reply to Alone173

TI__Mastermind 25335 points

Hi Zuan,

Let us keep in touch via email. This reply is to indicate that the introduction of the problem, please do not reply. Thanks

Regards

Tao

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TPS63031: Power off issue at output