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Texas Instruments TPS259621DDAT — Power Management (PMIC / Gate Driver)

TPS259621DDAT Electronic Fuse, 2.7V-19V Input, 2A Output

MPNTPS259621DDAT
Active

Texas Instruments TPS259621DDAT electronic fuse, 2.7V ~ 19V input, 2A output, ±10.4% accuracy, -40°C ~ 125°C, 8-PowerSOIC (0.154", 3.90mm Width) surface mount, Tape & Reel (TR) / Cut Tape (CT).

$1.1100Ref. price · indicative, final on quote
Texas Instruments TPS259621DDAT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS259621DDAT specifications
ParameterValue
MountingSurface Mount
Voltage - input2.7V ~ 19V
Output current2A
Operating temperature-40°C~125°C
PackageTape & Reel (TR); Cut Tape (CT)
Accuracy±10.4%
FunctionElectronic Fuse
Case8-PowerSOIC (0.154\", 3.90mm Width)

Product details

The Texas Instruments TPS259621DDAT is an electronic fuse (eFuse) that protects downstream circuitry from overcurrent, overvoltage, and inrush events on a 2.7V to 19V input rail, delivering a continuous 2A output. The ±10.4% accuracy on the current-limit threshold means the designer must budget headroom: at 2A nominal, the actual trip point could be as low as 1.79A or as high as 2.21A, so the load must stay below 1.79A to avoid nuisance trips across part tolerance.

8-PowerSOIC with PowerPad — thermal layout matters at 2A

The 8-PowerSOIC package (3.90 mm width) includes an exposed thermal pad (PowerPad) on the bottom of the supplier package. Surface-mount assembly follows standard SOIC-8 reflow profiles. The PowerPad requires a solder paste stencil aperture covering at least 50% of the pad area for void-free attach.

The base product number TPS259621 indicates this is the 2A variant in the family.

Frequently asked questions

What is the maximum output current of TPS259621DDAT?

The continuous output current rating is 2A. The current-limit accuracy is ±10.4%, so the effective trip range spans approximately 1.79A to 2.21A. Design the load to stay below 1.79A to avoid nuisance overcurrent shutdowns across part tolerance and temperature.

Is TPS259621DDAT suitable for hot-swap applications?

Yes, as an electronic fuse with a 2.7V to 19V input range and 2A output, it is designed for hot-swap and inrush current limiting. The integrated FET ramps the output voltage to control inrush current when a card or module is plugged into a live backplane.