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Texas Instruments TPS2547RTER — Power Management (PMIC / Gate Driver)

TI TPS2547RTER USB Power Switch, 3A, 16-WQFN

MPNTPS2547RTER
Active

Texas Instruments TPS2547RTER, USB Power Switch, High Side, N-Channel, 1 Output, 3A, 73mOhm, 4.5V to 5.5V, 16-WQFN (3x3mm), -40°C to 125°C.

$0.4965Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS2547RTER specifications
ParameterValue
Output typeN-Channel
TypeUSB Switch
MountingSurface Mount
Voltage - load4.5V ~ 5.5V
Voltage - supply (Vcc (Vdd))Not Required
Output current3A
I/O channels1
InterfaceOn/Off
Operating temperature-40°C~125°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesStatus Flag
Rds on73mOhm
Case16-WFQFN Exposed Pad
Fault protectionCurrent Limiting (Adjustable), Over Temperature
Output configurationHigh Side
Ratio - Input:Output1:1

Product details

USB port power switch with adjustable current limit

The 73 mOhm typical on-resistance keeps the voltage drop under 220 mV at full load, which matters when the downstream device is already operating near the USB voltage tolerance floor.

Protection set and fault reporting

Built-in protection covers the two failure modes that kill USB ports: over-current and over-temperature. The current limit is adjustable via an external resistor — you set the trip point to match the cable gauge or connector rating, not the other way around. When a fault trips, the Status Flag output (open-drain, active low) tells the host controller to log the event or retry the port. The switch itself is self-recovering after the fault clears.

The 16-WFQFN with exposed pad (3x3 mm) is a compact footprint for space-constrained USB hubs, docking stations, or automotive USB charge ports.

No end-of-life notification, no last-time-buy window to track. For new designs this means standard distribution availability with no forced redesign horizon.

Frequently asked questions

What is the maximum output current of TPS2547RTER?

The maximum continuous output current is 3 A. The current limit is adjustable via an external resistor, so you can set a lower trip point if the downstream load or cabling requires it.