TPS7A49: TPS7A4901DGNR

Serhiy Tsap59

Part Number: TPS7A49

We use TPS7A4901DGNR in 5.6V to 5.0V voltage regulator, typical output current is about 75-80mA.

The PCB is in production from 2014. No an issue till November, 2019.

Starting from the end of November we experienced reduced voltage for about 15-20% of all produced PCBs (down to 3.5V).

Looks like hundreds samples defected.

Test on 2 defected components shows, that current limit starts from 55-60mA. Before reaching this level, voltage regulating is OK.

For good components current limit is according to the specification (>220mA).

Increasing of input voltage to 6-10V does not help.

Could you please help.

Thank you in advance.

Best regards,

Serhiy Tsap

0 JCHK over 5 years ago

Hi Serhiy,

Can you take pictures of the failed devices? Do they have the same lot codes?

I will try to get our sales support team in contact to help with the FA process.

0 Serhiy Tsap59 over 5 years ago in reply to JCHK

Hi JCHK,

0 Serhiy Tsap59 over 5 years ago in reply to Serhiy Tsap59

Hi JCHK,

They are:

95TI

PTJQ

Best regards,

Serhiy

0 JCHK over 5 years ago in reply to Serhiy Tsap59

Hi Serhiy,

I have our sales in contact with your procurement team to get to the bottom of this.

Thanks,

0 Serhiy Tsap59 over 5 years ago in reply to JCHK

Hi John,

Thank you very much.

Looking forward to hearing from you.

Best regards,

Serhiy Tsap

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