• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 62 subscribers
  • Views 789 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

LMZ30606: Layout question of the AGND and PGND

moshe levy
Prodigy 30 points
Part Number: LMZ30606

Hi

I am using the LMZ30606RKG. I haev a question about the layout of the AGND and PGND.

- according to TI support engineer I should have connected the PGND and AGND in schematics. thing is, in the datasheet layout examples it shows two separate planes of the AGND and PGND.

so my question are:

- if I do not separate them in schematics. do i ignore datasheet layout recommendation which shows two GND planes?

- if I do separate them, how do i deal with pin 37? in the datasheet figure 36, pin 37 is in the middle of AGND but no separation

  • 0
    TI__Mastermind 28020 points

    The AGND and PGND of the LMZ30606 need to be connected in your schematic. In your layout, the AGND and PGND areas should be seperate except for a single point connection. In this way, the analog circuitry will not be in the return path of the heavier switching current of the PGND.