With 10% margin on the current limit trip point (the 1.1 factor) and assuming a maximum gate drive current of 500 mA, the current limit requires a resistor less than 15.4 mΩ and stability requires a sense resistor less than 134 mΩ. A 10-mΩ resistor is selected. Approximately 2 mΩ of routing resistance is added in compensation calculations.
The power dissipation in RISNS is calculated by Equation 51.
At maximum duty cycle, this is 0.253 W.