Texas Instruments TPS259271DRCR electronic fuse, 4.5V to 18V input, 5A output, ±8% accuracy, -40°C to 85°C, 10-VSON (3x3) package.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Voltage - input | 4.5V ~ 18V |
| Output current | 5A |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Accuracy | ±8% |
| Function | Electronic Fuse |
| Case | 10-VFDFN Exposed Pad |
The TPS259271DRCR: The 5 A figure is the maximum continuous current the internal FET can pass at 25°C with adequate PCB copper; derate for ambient temperature and board area per the datasheet's SOA curve. For a 12 V rail pulling 4 A steady-state, this part leaves 1 A of headroom before the ±8% accuracy band starts to matter.
Yes — the electronic fuse function is designed for hot-swap and inrush-current limiting. The ±8% current-limit accuracy and the 4.5 V to 18 V input range cover common hot-swap rails like 5 V and 12 V. The part does not include a dedicated power-good flag or fault-reporting pin, so the downstream system must monitor the output voltage or use a separate supervisor.