Hi community,
I have a power source of 2.2V at 4mA from NFC antenna and I want to power a circuit that consume 62.5mW at 2V (31mA aprox.). To do that, the only way is storage some energy from power source to supercap or battery and buck boost from 2.2V to 2V.
I was taken a look to some application notes and say that storage energy into supercap is very slowly, in the best case is around 200 seconds and my system have start-up in 3-5 seconds. Is that possible with a supercap?, Is that possible with a thin film lithium battery?.
Also I see that TI have 2 IC bq25570 and BQ25505, this IC comply with the requirements above?.
If you need more information or have some doubts, do not hesitate to contact me.
Thanks in advance.
J.
