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Texas Instruments TPS2541ARTET — Power Management (PMIC / Gate Driver)

Texas Instruments TPS2541ARTET USB Power Switch, 73 mOhm

MPNTPS2541ARTET
Active

Texas Instruments TPS2541ARTET, USB power switch, high-side, N-channel, 73 mOhm typical Rds(on), 2.5 A max output, adjustable current limit, over-temp and UVLO protection, 16-WQFN (3x3 mm) package, -40°C to 125°C junction temperature.

$1.3393Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS2541ARTET specifications
ParameterValue
Input typeNon-Inverting
Output typeN-Channel
TypeUSB Switch
MountingSurface Mount
Voltage - load4.5V ~ 5.5V
Voltage - supply (Vcc (Vdd))Not Required
Output current2.5A
I/O channels1
InterfaceOn/Off
Operating temperature-40°C~125°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesLoad Discharge, Status Flag
Rds on73mOhm
Case16-WFQFN Exposed Pad
Fault protectionCurrent Limiting (Adjustable), Over Temperature, UVLO
Output configurationHigh Side
Ratio - Input:Output1:1

Product details

The TPS2541ARTET: At 2.5 A output, that resistance drops about 180 mV across the switch — well within the 5 V nominal bus budget even after a connector and cable drop. The part integrates adjustable current limiting, over-temperature protection, and under-voltage lockout, so the VBUS rail gets three layers of fault coverage without external supervisory circuitry.

2.5 A output — covers BC 1.2 and Apple 2.4 A charging profiles

The 2.5 A maximum output current supports a single USB port. The current limit is adjustable via an external resistor. The 1:1 input-to-output ratio passes the full input current to the load when enabled.

The wide temp grade also simplifies qualification for automotive infotainment and telematics units that require AEC-Q100-equivalent thermal margin.

16-WQFN (3x3 mm) — rework and footprint considerations

The 16-WQFN with exposed pad is a 3x3 mm package — small enough to fit behind a stacked USB connector on a four-layer board. Rework is feasible with hot air if the board has good solder mask between the pad and adjacent vias.

Frequently asked questions

What is the maximum current of TPS2541ARTET?

The maximum continuous output current is 2.5 A. The current limit is adjustable via an external resistor, so the designer can set the port budget lower — 1.5 A or 2.1 A — depending on the USB specification being targeted. The 73 mOhm typical Rds(on) ensures the voltage drop at 2.5 A stays under 200 mV.