Hello TI community,
I was looking for a negative DC-DC voltage boost converter to charge a battery with a negative voltage. I want to make the positive terminals of the battery and power source "common".
The battery voltage plateau is about 2.5 V (need charging voltage up to 3V).
The power source is a solar cell that will have an input voltage of ~ 0.8 V (and can generate ~ 20 mA of current).
The positive terminal of the power source (in this case, solar cell) is directly connected to the positive terminal of the battery.
Is there any negative DC-DC voltage boost converter out there? I am looking for low power (something like bq25504 EVM) but with negative voltage boosting, input voltage range Vin = 500 mV to 3 V.
Thank you.
Best Regards