There is an Tube package that contains it. The 8-TSSOP (0.173, 4.40mm 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.A 15V supply voltage can be applied to it.High efficiency can be achieved with a 8.4V output voltage.There is 2A output current when the device operates.There is a subcategory of Power Management Circuits for this device.The device can operate at a voltage of 4.5V as low as possible.4mA is set for Vsup (maximum supply voltage).Voltage input must be at least 4.5V volts.