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Part Number: LP3964 I'm reading through the datasheet here and Section 8.2.2.1 describes the ESR requirements of the input and output capacitors. For example:
C IN ESR (m Ω ) / C IN (μF) ≤ 1.5
0.2 Ω ≤ C OUT ESR ≤ 5 Ω
However, what at what…