Hello,
We are using a wireless charging coil and rectifier as the input to the TPS70950DRVR. The output powers the battery charger IC, which powers the rest of the system. I probed the voltage on the output pin and notice it varies from ~1V to 5V as the wireless charging (Rx) coil is moved around over the Tx coil. We believe this is causing undefined behavior with the battery charger IC, so looking for help to stabilize the output from the LDO. I'm also wondering if this is expected behavior for the output?
The picture below is the output from TPS70950DRVR (input to battery charger) as the coil is moved around.
Thanks!