Other Parts Discussed in Thread: LM5143
Hi,
If I use more than one LM5143 and the input is the same VBAT. Should them share one Pi filter or use individual PI filter for each device?
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Hello Zehui,
If the converters you are using are not synchronized by a clock, then I would use separate input filters to avoid beat frequency interactions between the two switching converters. If all the switchers are clock synchronized, then I would use a single filter.
Hope this helps.
David.