The maximum current rating of the TPS2044BDG4 is 4A per channel, with a total current rating of 8A for both channels combined.
To ensure proper thermal management, it is recommended to provide a heat sink or thermal pad to dissipate heat, and to keep the device away from other heat sources. The thermal pad should be connected to a copper plane on the PCB to improve heat dissipation.
The recommended PCB layout for the TPS2044BDG4 involves placing the device near the power input, using wide traces for power and ground, and minimizing the distance between the device and the input capacitors. A solid ground plane is also recommended to reduce noise and improve thermal performance.
The TPS2044BDG4 has built-in overcurrent protection, which limits the output current to prevent damage to the device. However, it is still recommended to add external overcurrent protection, such as a fuse or a current-sensing resistor, to provide additional protection against overcurrent conditions.
The recommended input capacitor value for the TPS2044BDG4 is 10uF to 22uF, with a voltage rating of at least 10V. The capacitor should be placed as close as possible to the device to minimize noise and improve performance.