What the ±10.4% current-limit accuracy means for your load budget
The TPS259630DDAR is a Texas Instruments electronic fuse — a single-chip power-path protector that replaces a discrete fuse, current-sense resistor, and hot-swap controller. It limits output current to 2 A nominal across a 2.7 V to 19 V input bus, with a ±10.4% accuracy on the current-limit threshold. That ±10.4% tolerance means at 2 A setpoint the actual trip can occur between roughly 1.79 A and 2.21 A. If your load draws 1.8 A steady-state, you are inside the guardband — budget the lower edge when sizing upstream supply and trace width.
Industrial temperature range — motor drives and outdoor gear
The 125°C junction ceiling leaves headroom for self-heating at 2 A when the PowerPad is soldered to a reasonable copper area.
Lifecycle — no last-time-buy risk here
It qualifies for new-production BOMs without a last-time-buy window to manage.