There is an Tube package that contains it. The 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) package includes it as a convenience.Mounting type is Surface Mount.It is recommended to set the temperature to -20°C~70°C TA for reliable performance.It uses an analog integrated circuit of type POWER SUPPLY SUPPORT CIRCUIT.For the device to be charged, there is Constant - Programmable current required.Parts related to the base part number BQ2057 can be found based on that number.It contains 8 terminations.There are 8 pins on it.Features like Current can be programmed.It operates on the basis of 8 pins.A total of 1 channels are available.Battery voltage should be 5V.High efficiency can be achieved with a 4.1V output voltage.There is 2A output current when the device operates.There is a subcategory of Power Management Circuits for this device.As far as the mounting is concerned, it is mounted in the way of Surface Mount.4mA is set for Vsup (maximum supply voltage).It is recommended that the supply voltage be set to 15V for maximum efficiency.In order to ensure normal operation, the supply voltage (Vsup) should be kept above 4.5V.