This can be found in the Tape & Reel (TR) package.In the package 16-WFDFN Exposed Pad, there is a version of it.Mounting type Surface Mount is chosen for the device.Temperature -40°C~85°C TA is recommended for reliable performance.To charge the device, you need Constant - Programmable current.Identify its related parts based on the base part number LTC3552.In the case of the battery pack, it is 4.2V.In addition to Current, there are several other programmable options.When charging current is maximum, it is rated at 950mA.In this case, the device's maximum supply voltage is 8V.It makes sense to conclude that for the supplier package of the device that it is 16-DFN (5x3).
LTC3552EDHC-1#TRPBF Features
Battery pack voltage of 4.2V 16-WFDFN Exposed Pad package
LTC3552EDHC-1#TRPBF Applications
There are a lot of Linear Technology/Analog Devices LTC3552EDHC-1#TRPBF Battery Chargers ICs applications.