Three-channel high-side switch with integrated protection
The TPS2047BD from Texas Instruments is a three-output, high-side N-channel power switch in a 16-SOIC package. It handles a load voltage range of 2.7 V to 5.5 V and delivers up to 250 mA per channel with a typical on-resistance of 70 mOhm. The switch includes fixed current limiting, over-temperature shutdown, and under-voltage lockout (UVLO) — protection features that eliminate the need for external supervisory circuitry in USB hubs, set-top boxes, and industrial control outputs.
Temperature grade and environment
Rated for -40°C to 125°C junction temperature, the TPS2047BD suits industrial enclosures, outdoor telecom cabinets, and automotive-adjacent modules where ambient temperatures exceed the commercial 70°C ceiling. The wide range also provides margin for self-heating when all three channels are loaded near the limit.
Sourcing and lifecycle
The TPS2047BD carries an Active lifecycle status and is ROHS3 compliant. The part is available through independent distribution and is quoted to order against an RFQ; current pricing and lead time are confirmed at quote time.
