The 2-phase off-battery boost converter is frequently referred to as Main Boost Stage.

The 3.3-V to 10-V bias boost converter is also referred to as a Bias Boost Regulator.

The maximum continuous runtime load current for the Main Boost Stage depends on the allowable temperature rise on the components and the ambient temperature. Mounting the board on a heat sink or using airflow (or both) results in a lower temperature rise on the components, allowing for higher prolonged or continuous runtime load current.

Make sure that properly-sized wire leads are used to connect the inputs and outputs, especially the low-voltage Main Boost Stage input, where the current can be around 50 A at full load. Consider using AWG#8 wire or wire with an even smaller gauge number.

Consider further optimization on the SW node plane area and high-frequency decoupling coop area to enhance EMI performance of the Main Boost Stage when building customized boards based on this reference design.

However, due to the thermal loss of MOSFETs (mainly low-side FETs) in this high-power reference design, reserve the plane area of the SW node to the degree where the heat dissipation is abundant. The heat dissipation of the power inductor can be enhanced by enlarging the non-switching node plane area of the inductor, along with the placement of thermal vias.