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Texas Instruments TPS2551QDBVRQ1 — Power Management (PMIC / Gate Driver)

TPS2551QDBVRQ1 Automotive Power Switch, 85 mOhm, SOT-23-6

MPNTPS2551QDBVRQ1
NRND

Texas Instruments TPS2551QDBVRQ1, Automotive AEC-Q100 high-side power switch, 85 mOhm Rds(on), 1.1 A output, 2.5 V to 6.5 V load, SOT-23-6, NRND.

$3.3400Ref. price · indicative, final on quote
Texas Instruments TPS2551QDBVRQ1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS2551QDBVRQ1 specifications
ParameterValue
SeriesAutomotive, AEC-Q100
Input typeNon-Inverting
Output typeN-Channel
TypeGeneral Purpose
MountingSurface Mount
Voltage - load2.5V ~ 6.5V
Voltage - supply (Vcc (Vdd))Not Required
Output current1.1A
I/O channels1
InterfaceOn/Off
Operating temperature-40°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesSlew Rate Controlled
Rds on85mOhm
CaseSOT-23-6
Fault protectionCurrent Limiting (Adjustable), Over Temperature, UVLO
Output configurationHigh Side
Ratio - Input:Output1:1

Product details

85 mOhm high-side switch for automotive power distribution

The Texas Instruments TPS2551QDBVRQ1 is an automotive-grade (AEC-Q100) single-channel high-side power switch in a SOT-23-6 package. The switch is controlled by a non-inverting On/Off logic input and requires no separate Vcc supply — the internal gate drive is powered from the load rail.

Fault protection set — adjustable current limit, OTP, UVLO

Built-in fault protection includes adjustable current limiting, over-temperature shutdown, and under-voltage lockout (UVLO). The current limit is set with an external resistor, allowing the designer to tailor the trip threshold to the downstream load. The slew-rate controlled turn-on reduces inrush current and minimizes bus voltage droop during hot-plug events.

Frequently asked questions

Is TPS2551QDBVRQ1 obsolete or still available?

It remains available for existing production runs but is not recommended for new designs. Sourcing is through independent distribution against an RFQ.

Is TPS2551QDBVRQ1 automotive grade?

Yes, the TPS2551QDBVRQ1 is qualified to AEC-Q100, the automotive reliability standard.