The package that has it is the Tube package.It is contained in a package named 12-WFBGA, WLCSP.Surface Mount is the mounting type of the device.A temperature setting of -40°C~85°C TA would be the best thing to do.Identify its related parts based on the base part number MAX14578.The battery pack is set to 4.2V when it comes to the battery.In this case, the device's maximum supply voltage is 5.5V.It makes sense to conclude that for the supplier package of the device that it is 12-WLP (1.68x1.3).
MAX14578AEWC+ Features
Battery pack voltage of 4.2V 12-WFBGA, WLCSP package
MAX14578AEWC+ Applications
There are a lot of Maxim Integrated MAX14578AEWC+ Battery Chargers ICs applications.