TPS543x feedback resistor calculator
Texas Instruments TPS5430, TPS5431
Select the ideal feedback resistors for your DC converter circuit. This tool helps you adjust the output voltage of a TPS543x DC/DC converter. Experiment with combinations of up to three resistors, enhancing precision in voltage regulation.
184.108.40.206.4 Output Voltage Set-Point The output voltage of the TPS5430 is set by a resistor divider ( R1 and R2 ) from the output to the VSENSE pin. Calculate the R2 resistor value for the output voltage of 5 V using Equation 12:
R2 = ( R1 x 1.221 ) / ( Vout - 1.221 )
For any TPS5430 design, start with an R1 value of 10 kΩ. R2 is then 3.24 kΩ.
|Texas Instruments TPS5430, TPS5431|
|Step-down 3A Adjustable|
|Input Range:||5.50V - 36.00V|
|Output Range:||1.22V - 31.32V|
|Manufacturer Part #||TPS5430DDAR|
|Formula Vout =||R1 * 1.221 / R2 + 1.221|