bq25185 + TPS61023 = USB or Solar lipoly with 5V output 🔋☀️🔌
We spent the weekend tweaking our bq25185
https://www.digikey.com/short/8hd2778w
designs and made one basic breakout for this flexible battery charging chip. Then, we made a board with a 3.3V buck output to charge the battery with a USB or solar panel and got a clean and consistent 3.3V out. With both of those working, here's a design for a version that has a 5V booster with the TPS61023
This adorable little board will come in very handy whenever you need a good amount of 5V power. It's the size of a linear regulator, but
, which gives a nice clean 1A with a small bill of materials. Now you can use USB, DC, or solar to charge your favorite lipoly or liion chip and get 5V output. Maybe we'll make a version that can handle 3.6V LiFePO4 batteries, too? It's easy to set the bq to handle those by changing a single resistor.