• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 351 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.

LMZ10504 Input Caps

Mark Guastaferro
Genius 11185 points
Other Parts Discussed in Thread: LMZ10504

LMZ10504 data sheet recommends a ceramic input cap, 22 uF or 47 uF.  The applicaiton requires the use of Mil-spec capacitors and this much capacitance in ceramic is very large.

Is a Tantalum capacitor acceptable as the only input cap? Or maybe combined with a small ceramic cap (< 8.2uF)

  • 0
    TI__Genius 15810 points
    Tantalum capacitors can be acceptable as input capacitors. But please make sure that the one you have chosen has relatively lower ESR across temperature. You would still need a smaller value ceramic such as 1 to 4.7uF at the input terminals, soldered right across the input pin and PGND pad without any thermal reliefs. The ceramic input cap is a must and helps filter out high frequency noise.