The TPS40075EVM-001 provides the user with remote sense capabilities through the connector J3. When remote sense is used, J3 should be connected at the load to provide more accurate load regulation by compensating for losses over the terminal connections and load wire connections. When remote sense is connected the output voltage measured between TP15 and TP16 can show a positive load regulation characteristic (increasing output voltage with increasing load). This is the result of the compensation of the controller of resistive losses between the local sense voltage (TP15 and TP16) and the remote sense connection (J3). TP17 and TP18 are connected to the remote sense lines and thus will show the voltage at the load when remote sense is connected.

Excessive phase shift from inductive components in the load or remote sense connections can cause instability if care is not taken to minimize these parasitic effects in the remote sense line. A twisted pair of insulated cables from the load connection to J3 is preferred to minimize noise injection and inductance in the remote sense line. In a device layout, care should be taken to shield the remote sense line from high-noise, high-current, or digital signals to limit noise injection into the feedback path and provide the most accurate regulation possible.