TPS62171: TPS62171QDSGTQ1

HOJIN HYUN

Prodigy 10 points

Part Number: TPS62171

* OUTPUT VOLTAGE (data sheet) :1.8V (not Adjustable)

* Real output voltage (our board) : about 0.34V

- TP7 / U5 #7 / U5 #6

I want to gain 1.8V output voltage of TPS62171QDSGTQ1 in our board.

Please let me know the right design below schematic as soon as possible.

Thank you.

over 1 year ago

0 Colin Chen over 1 year ago

TI__Mastermind 23571 points

Hi Sir,

Above schematic looks good to me

Thanks

Colin

0 HOJIN HYUN over 1 year ago in reply to Colin Chen

Prodigy 10 points

Dear Colin

Thank you for your fast response.

But output voltage of TPS62171QDSGTQ1 is not still 1.8V.

I am still not sure why the output voltage of this part is not normal.

I connected U5 #2 and U5 #3. Even so, the output of this part is about 0.34V.

Could you give me a solution so that I can get a normal output voltage?

Best regards,

hojin

0 Colin Chen over 1 year ago in reply to HOJIN HYUN

TI__Mastermind 23571 points

Hi Sir,

Could you show the waveforms of SW, I_L and Vout to me？ and replace a new device and test again.

Maybe there are some soldering problem.

Thanks

Colin

0 HOJIN HYUN over 1 year ago in reply to Colin Chen

Prodigy 10 points

Hello Colin

I will try to replace a new device and test again.

And then, I will send the result of this part.

Thank you.

Hojin.

0 Colin Chen over 1 year ago in reply to HOJIN HYUN

TI__Mastermind 23571 points

Hi Sir,

It is ok to me.

Thanks

Colin

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TPS62171: TPS62171QDSGTQ1