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Texas Instruments TPS22954DSQR — Power Management (PMIC / Gate Driver)

TPS22954DSQR load switch, 14 mOhm, 5 A, active

MPNTPS22954DSQR
Active

Texas Instruments TPS22954DSQR general-purpose high-side load switch, 14 mOhm typical Rds(on), 5 A max output, 2.5 V to 5.7 V input, -40°C to 105°C, 10-WFDFN exposed pad, active.

$1.0200Ref. price · indicative, final on quote
Texas Instruments TPS22954DSQR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS22954DSQR specifications
ParameterValue
Input typeNon-Inverting
Output typeN-Channel
TypeGeneral Purpose
MountingSurface Mount
Voltage - load2.5V ~ 5.7V
Voltage - supply (Vcc (Vdd))Not Required
Output current5A
I/O channels1
InterfaceOn/Off
Operating temperature-40°C~105°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesAuto Restart, Load Discharge, Power Good, Slew Rate Controlled
Rds on14mOhm
Case10-WFDFN Exposed Pad
Fault protectionOver Temperature, UVLO
Output configurationHigh Side
Ratio - Input:Output1:1

Product details

14 mOhm Rds(on) — what it sets for the load budget

The TPS22954DSQR: Its 14 mOhm typical on-resistance means at 5 A load the conduction loss is just 0.35 W — low enough that the 10-WFDFN exposed pad can sink it without forced air, provided the PCB copper pours under the pad are sized for the job.

Fault protection and system features

Built-in over-temperature protection and undervoltage lockout (UVLO) guard the load and the switch itself. The Auto Restart feature re-tries the output after an over-temperature fault clears, which is useful for intermittent overloads. Load Discharge pulls the output to ground when the switch is turned off, preventing floating rails during power-down sequencing. A Power Good output gives a logic-high signal when the output is within regulation — handy for cascading into a downstream converter's enable pin or for a microcontroller GPIO to poll.

Frequently asked questions

What is the Rds(on) of TPS22954DSQR?

The typical Rds(on) is 14 mOhm, measured at the rated input voltage range. This is the on-resistance of the N-channel pass FET — it sets the conduction loss floor for the load current.

What package does TPS22954DSQR come in?

It comes in a 10-WFDFN exposed pad package, with the supplier device package designated as 10-WSON (2x2 mm).

What are the fault protection features of TPS22954DSQR?

The switch integrates over-temperature protection and undervoltage lockout (UVLO). Over-temperature triggers an automatic restart once the die cools. UVLO holds the switch off if the input voltage drops below the threshold.