What the TPS259570DSGT eFuse does for your power rail
The Texas Instruments TPS259570DSGT is an integrated electronic fuse (eFuse) that protects downstream circuitry from overcurrent and overvoltage events on a 2.7V to 18V input rail, delivering up to 4A continuous output. Its ±7.5% accuracy on the current-limit threshold means you budget that tolerance into the design margin — for a 4A limit, the actual trip point can fall between 3.7A and 4.3A, so the load must stay comfortably below the lower bound.
Package and footprint for board-constrained layouts
The 8-WFDFN exposed pad case is the same footprint, so the reflow profile matches standard lead-free solder.