LMS1585A: Technical issues

Zhonghui Xu

Expert 5445 points

Part Number: LMS1585A

Hi team,

I got a question from customer.

TMS1585-Q.pdf

Thank you very much for your help.

Best regards,

over 4 years ago

0 Edgar Acosta1 over 4 years ago

TI__Genius 12675 points

Hi Xu,

The tab is Vout. This means that you can use the Tab for Vout as it is internally connected. Because the tab has more surface and metal contact, it can be used as thermal dissipation, although, this does not mean that it a thermal pad itself.

You can route the Tab to the Out pin as you would do with other LDO designs with more than one OUT pin. You can also leave the Tab un-connected if you solely want to use the designed VOUT pin, however, if you do so, please make sure you do not connect anything else to the tab.

Best,

Edgar Acosta

0 Zhonghui Xu over 4 years ago in reply to Edgar Acosta1

TI__Expert 5445 points

Hi Edgar,

thank you for your answer.

Lastly, I would like to confirm that the TAB terminal and VOUT terminal are internally connected, and is connection B better?

Thank you again.

Best regards,

0 Edgar Acosta1 over 4 years ago in reply to Zhonghui Xu

TI__Genius 12675 points

Hi Xu,

Yes, TAB and Vout are internally connected, and yes, B is better, sorry if that was not clear in my first response. Thank you once more for contacting us.

Best,

Edgar Acosta

0 Zhonghui Xu over 4 years ago in reply to Edgar Acosta1

TI__Expert 5445 points

Hi Edgar,

Thank you for your time.

Best regards,

Power management

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LMS1585A: Technical issues