Integrated electronic fuse that sits in a supply rail and protects the load from overcurrent, overvoltage, and inrush. An internal FET limits current to a level set by one resistor at ILIM, a capacitor at dV/dT ramps the output to tame inrush on hot-plug, and EN/UVLO sets the turn-on threshold, with a thermal shutdown backing it all up. It works on a 2.7 to 18 V rail, so it guards USB, hot-swap, and module power inputs. A one-chip replacement for a fuse plus a supervisor plus a MOSFET.

Pinout

Pin	Name	Type	Function
1	dV/dT	input	Slew-rate programming pin. A capacitor from this pin to GND sets the ramp rate of OUT at device turn-on.
2	EN/UVLO	input	Dual-function enable / UVLO pin. Pulling low shuts off the internal pass MOSFET; pulling high enables the device. An external resistor divider from VIN sets a custom UVLO trip point.
3	VIN	power_in	Input supply voltage (nominal 5 V for TPS25925x; absolute max 20 V DC / 22 V transient).
4	VIN	power_in	Input supply voltage (nominal 5 V for TPS25925x; absolute max 20 V DC / 22 V transient).
5	VIN	power_in	Input supply voltage (nominal 5 V for TPS25925x; absolute max 20 V DC / 22 V transient).
6	OUT	power_out	Protected output of the internal pass MOSFET (30 mΩ typical Rds(on)). Rated for continuous 6.25 A output current.
7	OUT	power_out	Protected output of the internal pass MOSFET (30 mΩ typical Rds(on)). Rated for continuous 6.25 A output current.
8	OUT	power_out	Protected output of the internal pass MOSFET (30 mΩ typical Rds(on)). Rated for continuous 6.25 A output current.
9	NC	unconnected	Not connected internally. May be left floating or tied to GND.
10	ILIM	input	Current-limit programming pin. A resistor from this pin to GND sets the overload and short-circuit current limit (2-5 A range, ±15% accuracy).
11	GND	power_in	Exposed thermal pad. Serves as the device ground reference and the primary thermal path; must be soldered to the PCB GND plane.

Key specifications

Parameter	Value
Type	eFuse (integrated protection switch)
Input	2.7-18 V
Current limit	Adjustable via ILIM resistor
Inrush control	Adjustable via dV/dT capacitor
Enable/UVLO	Programmable threshold (EN/UVLO)
Protection	Overcurrent, thermal shutdown
Package	VSON-10

Ordering variants

Same part, different packaging or reel option.

TPS25925xDRC (VSON-10)
TPS25921x / TPS25940x (family variants)

CAD (KiCad official)

Symbol: Power_Management:TPS2592xx (KiCad official)
Footprint: Package_SON:VSON-10-1EP_3x3mm_P0.5mm_EP1.65x2.4mm_ThermalVias
3D model: VSON-10 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (36 pp, sha256 959aa0f67322ab34, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF