Texas Instruments recommends a compact layout with the TL2843BDRG4-8 placed close to the power source, using a solid ground plane, and keeping sensitive analog traces away from the switching node. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
To ensure the TL2843BDRG4-8 operates within the recommended TJ range, use a thermal pad or a heat sink, and ensure good airflow around the device. Calculate the junction temperature using the thermal resistance (RθJA) and the power dissipation (PD) values provided in the datasheet.
The TL2843BDRG4-8 can handle a maximum input voltage of 18V, but it's recommended to operate within the specified input voltage range of 7V to 15V for optimal performance and reliability.
The output voltage of the TL2843BDRG4-8 can be adjusted by using a resistive divider network between the output pin and the feedback pin. The recommended resistive divider values are provided in the datasheet.
The minimum input capacitance required for the TL2843BDRG4-8 is 10uF, but it's recommended to use a higher value (e.g., 22uF) to ensure stable operation and minimize input voltage ripple.