bq51003: Wireless Charging - Low Power Applications. Combination of bq51003 and...?

Hello TI experts, i am looking for an RX solution for charging low power devices: charging current < 70 mA.
After being on the blog for sometime, it became clear that the bq5105xB, although offering a 3 in 1 functionality (attractive and compact), is aimed for the 5W applications.

In addition, I would need a DC/DC converter, at the final stage after the battery, so that while the battery is getting charged (for instance while 4.2V is the charging voltage), the rest of the circuitry can use a constant 3V or 3.3V bus voltage. (First, am I right on this point, that an extra component will still be needed even with the bq5105xB for this application?)

The search has led me to the following outcomes for the application in question, i.e. < 70 mA Icharge, constant bus voltage, low leakage current:
- The combination bq51003 plus the bq25100, although geared toward low power applications, might not be alone satisfying, since the desired constant 3V bus voltage cannot be generated using the bq25100. Is that correct?

- Same seems to apply for bq51003 plus the bq25120A. Correct?

- How about bq51003 plus the bq25010/1? Is that fine for the low power level I am seeking or you do think that there's a better combination or reference design?

Thanks.