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Texas Instruments TPS2051CDBVR — Power Management (PMIC / Gate Driver)

TPS2051CDBVR USB Power Switch, 500mA, SOT-23-5

MPNTPS2051CDBVR
Active

Texas Instruments TPS2051CDBVR USB power switch, high-side, N-channel, 500 mA, 4.5-5.5 V, SOT-23-5, tape and reel.

$0.6700Ref. price · indicative, final on quote
Texas Instruments TPS2051CDBVR datasheet (PDF)
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS2051CDBVR specifications
ParameterValue
Input typeNon-Inverting
Output typeN-Channel
TypeUSB Switch
MountingSurface Mount
Voltage - load4.5V ~ 5.5V
Voltage - supply (Vcc (Vdd))Not Required
Output current500mA
I/O channels1
InterfaceOn/Off
Operating temperature-40°C~125°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesLoad Discharge, Status Flag
Rds on97mOhm
CaseSC-74A, SOT-753
Fault protectionCurrent Limiting (Fixed), Over Temperature, Reverse Current, UVLO
Output configurationHigh Side
Ratio - Input:Output1:1

Product details

500 mA high-side USB switch in SOT-23-5

The TPS2051CDBVR: The switch is self-powered from the load voltage (Vcc/Vdd not required), simplifying the bill of materials for USB ports on motherboards, hubs, and peripheral devices.

Protection set and control interface

Fault protection includes fixed current limiting, overtemperature shutdown, reverse-current blocking, and undervoltage lockout (UVLO) — the part handles hot-plug inrush and shorted loads without external sense resistors. A non-inverting On/Off interface (active-high enable) and a status-flag output report overcurrent or overtemperature conditions to the host controller. The load-discharge feature pulls the output low when the switch is disabled, preventing a floating downstream rail.