• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 64 subscribers
  • Views 451 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

tps62130 output voltage disappeared

Alekcandr Antonov
Prodigy 10 points

Other Parts Discussed in Thread: TPS62130

I am using the TPS62130 buck voltage regulator to regulate from 6.9 volts down to 3.6 volts at up 2 amps.

After two minutes normal work - output voltage disappear. Removing and then return power supply has no effect. IC still don't work.

Please help me!

Here my schematic!

2330.Sheet1.pdf

  • 0
    TI__Expert 5495 points

    The layout in general looks ok, but I do not see thermal vias in the exposed thermal pad of the device. This is required for appropriate power dissipation. Please check the datasheet (page 22) for guidelines.

    Did you measure any signal like output voltage or inductor current before the device stopped working?

  • 0 in reply to Juergen
    TI__Intellectual 1335 points

    In a similar case, the connection to the EN pin was not sufficient (soldering).

    You might also monitor EN signal at the terminal, in case device stops switching.