I just can't get a working lipo charger with load sharing.
I want to be able to charge the battery while my Teensy is kept happy with 3.3V, then unplug the USB cable and see no interruption in power. Just like every phone in the world.
Somehow this turned into weeks of research and wasted time and money. I either get 2.8V while charging or with USB unplugged, or the reversed, depending on the design I use.
I just found this chip, which is supposed to do all this perfectly: http://www.analog.com/media/en/technical-documentation/data-sheets/4088fb.pdf
Did anybody have it working? I need 3.3V on the output with a 3.7V LiPo single cell battery, all the common things. I'm just trying to save some time and frustration here. Don't really want to "try this...". Please say if you get it working or not, or maybe some other design what you really have working for 3.3V.