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SX1276 power supply

Hi!

Is there any better defined requirements for the power supply than “low noise voltage source”. We have an prototype that uses an LTC3129 switch regulator running burst mode.

Could this cause any issues regarding the receiver stability/performance when a weaker signal is received. Like 20-30dBm above the maximum sensitivity regardless of SF used (7-12).

Below is the typical behavior of this regulator, frequency is of cause depending on the actual power consumtion but the voltage amplitude is about the same.
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