The output voltage of the TPS54332 is externally adjustable using a resistor divider network. In the application circuit of Figure 8-1, this divider network is comprised of R5 and R6. The relationship of the output voltage to the resistor divider is given by Equation 4 and Equation 5.

Choose R5 to be approximately 10 kΩ. Slightly increasing or decreasing R5 can result in closer output voltage matching when using standard value resistors. In this design, R4 = 10.2 kΩ and R = 4.75 kΩ, resulting in a 2.5-V output voltage.