SLUSF63B may 2023 – july 2023 TPSM843A26
PRODUCTION DATA
Remote sensing of the output voltage is provided through a dedicated high speed, low offset instrumentation type amplifier. Connect the output voltage setting resistive divider described below from the output voltage sensing point to the GOSNS pin. The center point is to be connected to the FB pin. Note the GOSNS pin is to be tied to the converter output voltage return at a location near to the load.
The output voltage is programmed with a resistor divider from the converter output (VOUT) to the FB pin as shown in Figure 7-5. Use 1% tolerance or better divider resistors.
Starting with a fixed value for the bottom resistor, typically 10 kΩ, use Equation 3 to calculate the top resistor in the divider.