The maximum operating temperature range for the TPS2044ADG4 is -40°C to 125°C.
To ensure proper power-up and initialization, make sure to follow the recommended power-up sequence, which is to apply VCC before applying VIN. Also, ensure that the EN pin is high during power-up.
For optimal performance, it is recommended to follow a 4-layer PCB design with a solid ground plane, and to keep the input and output capacitors close to the device. Also, ensure that the high-current paths are short and wide to minimize resistance and inductance.
The output voltage of the TPS2044ADG4 can be calculated using the formula: VOUT = VREF x (1 + R1/R2), where VREF is the internal reference voltage (1.2V), and R1 and R2 are the resistors connected to the FB pin.
The maximum current rating for the TPS2044ADG4 is 4A, but it can be limited by the thermal performance of the device and the PCB design.