Hi!
Does MPS offer a USB solution for a single-cell Li-Ion charge and boost circuit.
Input voltage would be USB 5V, output voltage also 5V.
The requirement is for the battery to supply boosted power only when there is no VIN.
If there is VIN, current is supplied primarily to the load, any current left over to charge the battery.
The circuit should be able to pass VIN to load with no battery installed. It should be possible to limit battery current to 100-200mA, but also capable of up to 1A. Full system current will not exceed 1.5A.
In other words, an uninterrupted power supply.
Thanks!