200 mOhm Rds(on) – conduction loss and thermal budget
The BTS52001EJAXUMA1 is a single-channel high-side PROFET switch from Infineon, built for resistive and inductive loads in automotive and industrial systems. Its 200 mOhm typical Rds(on) at 1.5 A continuous output sets the conduction loss — at full load that's about 0.45 W dissipation before any derating, so the exposed pad on the PG-DSO-8-43-EP package needs a solid copper pour to keep the junction below the 150°C maximum.
5 V to 28 V load range and fault protection set
The load supply range spans 5 V to 28 V, covering 12 V and 24 V nominal rails common in truck, bus, and industrial control. On-chip fault protection includes current limiting (fixed), open-load detection, over-temperature shutdown, and over-voltage clamp — meaning a single device handles the protection that would otherwise need a separate TVS, current-sense resistor, and comparator chain.
Infineon lists this part as obsolete. No official successor or cross-reference is recorded. For existing BOM lines, procurement must turn to the surplus and broker market.