• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 60 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.

TPS82672: Would like to know if additional input caoacitors are needed or not

Shunsuke Yamamoto
Expert 7651 points
Part Number: TPS82672

Tool/software:

Hi team,

May I know if we need to add extra input ceramic or bulk capacitors in the usecase below? I cannot judge if they are needed or not in customer's situation..

Input voltage: 3.3V

Output voltage: 1.5V

Output current: 0.153A

Best regards,

Shunsuke Yamamoto

  • +1
    TI__Guru**** 150650 points

    Hi Yamamoto-san,

    For the typical optical module application, where everything is squished together on a tiny PCB, no other Cin is required.  There is plenty of additional capacitance present on the input bus, from other regulators, etc.

    Thanks,

    Chris