2.7V to 18V eFuse — 4A continuous, ±7.5% trip accuracy
The TPS259520DSGT is an integrated electronic fuse from Texas Instruments that protects a downstream load from overcurrent and overvoltage events on a 2.7V to 18V supply rail. It delivers up to 4A continuous output current with a current-limit accuracy of ±7.5% — the minimum guaranteed trip point at a 4A setting is 3.7A, so the load budget must stay below that floor to avoid nuisance trips.
ROHS3 compliant per the evidence.
Package and footprint — 8-WSON (2x2) with exposed pad
The TPS259520DSGT is housed in an 8-WFDFN Exposed Pad, also designated as 8-WSON (2x2). The 2 mm × 2 mm body with a 0.50 mm pitch is a compact footprint for space-constrained power rails. No special handling beyond the usual moisture sensitivity level for a WSON package — verify the MSL on the reel label before bake decisions.