SLVS974F September 2009 – May 2020 TPS54218
PRODUCTION DATA.
The output voltage is set with a resistor divider from the output node to the VSENSE pin. It is recommended to use divider resistors with 1% tolerance or better. Start with a value of 100 kΩ for the R1 resistor and use Equation 1 to calculate R2. To improve efficiency at very light loads, consider using larger resistor values. If the values are too high, the regulator is more susceptible to noise and voltage errors from the VSENSE input current are noticeable.