BQ25505: Power harvesting chip with small package size

Part Number: BQ25505
Other Parts Discussed in Thread: BQ25504

Tool/software:

Hi, 

I am looking for a PMIC similar to BQ25505 that can be used for power harvesting from a solar cell and storing energy into a battery. I need the device to have a small package size such as WL-CSP. 

Does TI has such a part? 

Please let me know.