Question about Electrolytic or Tantalum capacitors in a PCB design for BG95-M3

IoT Modules LPWA Module
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1

Hi! I’m designing a custom board for the BG95-M3 module. According to the Hardware Design document we should use low ESR 100uF electrolityc capactors in VBAT_RF and VBAT_BB supply inputs.

My question is if I can use 100uF tantalum smd low ESR capacitors instead of the electrolytics.

Thanks!

2

Yes, tantalum capacitors are acceptable, but you need to pay more attention to the leakage current that may exist in the tantalum capacitors.