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.

  • TI Thinks Resolved

Can LMR14050 output 12V/3A?

Hello,

     I am designing the buck with LMR14050 .My question is :

  • Input: 24V
  • Output :12V/3A

       I can not obtain the stable output. Please see below waveform:

Figure 1 Input 24V-Ouput 12V/2A-RIpple Voltage 2.6V(Peak -Peak)

Figure 2 Input 24V-Ouput 12V/2A-SW node

The circuit is below:

Please give your advice,

Thanks

Devin

cid:image012.png@01D2361A.08FD3FF0

  • In reply to user1876340:

    Hi Devin,

    I think you working in China as the Osope language is Chinese.

    Did you measure the SW waveform by shortest probe grounding?

    You may add 5.1 ohm in series with C4 to limit switching speed and resuce the leading edge ringing.

    B R

    Andy Chen

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.