I'm new to (rechargeable) battery powered devices, but I found the following article about using the MAX1555 and MAX1881 for building a charging (via USB) and powering (µC-circuit, 3.3V, max. ~70mA) circuit. They describe the following diagram:
The MAX1555 seems to fitting very well for my application. It is cheap, compact and easy to use.
But the MAX1881 looks uneconomical for my application. It has a lot of functions, it is rather large and the datasheet describes another usage area for this IC. Its particular advantage seems to be reverse battery protection.
Does anybody has experience with the MAX1881 or does anybody know a good alternative?