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Texas Instruments TPS25942LRVCT — Power Management (PMIC / Gate Driver)

TPS25942LRVCT Electronic Fuse, 5.3A, 2.7V-18V, Active

MPNTPS25942LRVCT
Active

Texas Instruments TPS25942LRVCT electronic fuse, 5.3A output, 2.7V to 18V input, ±8% accuracy, 20-WQFN (4x3) package, -40°C to 125°C operating temperature.

$2.7200Ref. price · indicative, final on quote
Texas Instruments TPS25942LRVCT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS25942LRVCT specifications
ParameterValue
MountingSurface Mount
Voltage - input2.7V ~ 18V
Output current5.3A
Operating temperature-40°C~125°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Accuracy±8%
FunctionElectronic Fuse
Case20-WFQFN Exposed Pad

Product details

Electronic fuse for power-rail protection

The Texas Instruments TPS25942LRVCT is an electronic fuse (eFuse) that replaces a discrete hot-swap controller, sense resistor, and MOSFET in a single 20-WQFN package. It handles a 2.7V to 18V input rail and delivers up to 5.3A continuous output with ±8% current-limit accuracy.

Current-limit accuracy and load budget

The ±8% accuracy on the 5.3A current limit means the minimum guaranteed trip point is about 4.9A. When sizing the load, budget for that floor — a 4.5A continuous load leaves roughly 8% headroom before the fuse starts to fold back. The wide 2.7V to 18V input range covers common 3.3V, 5V, and 12V rails without needing a separate pre-regulator. That simplifies the bill of materials on multi-rail boards.

Frequently asked questions

What is the difference between TPS25942 and TPS25940?

The TPS25942 and TPS25940 are both electronic fuses in the same family. The key parametric difference is the current-limit accuracy — the TPS25942LRVCT lists ±8% accuracy, while the TPS25940 variant typically targets a different accuracy tier. Confirm the exact accuracy spec for the TPS25940 from its datasheet before substituting.

Does TPS25942LRVCT have reverse polarity protection?

The evidence does not list reverse polarity protection as a feature. The part is an electronic fuse for overcurrent and overvoltage protection on the input rail. For reverse-polarity scenarios, an external protection diode or a dedicated reverse-polarity protection IC should be added upstream.