SLVSDG6B May 2016 – April 2021 TPS54302
The output voltage is set with a resistor divider from the output node to the FB pin. TI recommends using divider resistors with 1% tolerance or better. Start with 100 kΩ for the upper resistor divider, use Equation 3 to calculate the output voltage. To improve efficiency at light loads consider using larger value resistors. If the values are too high the regulator is more susceptible to noise and voltage errors from the FB input current are noticeable.