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Texas Instruments TPS2553DBVT-1 — Power Management (PMIC / Gate Driver)

TPS2553DBVT-1 Power Distribution Switch, 85 mOhm, SOT-23-6

MPNTPS2553DBVT-1
Active

Texas Instruments TPS2553DBVT-1, high-side power distribution switch, 1.5 A output, 85 mOhm Rds(on) typ, adjustable current limit, SOT-23-6 package, -40°C to 150°C junction temperature.

$1.1700Ref. price · indicative, final on quote
Texas Instruments TPS2553DBVT-1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS2553DBVT-1 specifications
ParameterValue
Input typeNon-Inverting
Output typeN-Channel
TypeGeneral Purpose
MountingSurface Mount
Voltage - load2.5V ~ 6.5V
Voltage - supply (Vcc (Vdd))Not Required
Output current1.5A
I/O channels1
InterfaceOn/Off
Operating temperature-40°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesSlew Rate Controlled, Status Flag
Rds on85mOhm
CaseSOT-23-6
Fault protectionCurrent Limiting (Adjustable), Over Temperature, UVLO
Output configurationHigh Side
Ratio - Input:Output1:1

Product details

85 mOhm switch with adjustable current limit in SOT-23-6

The TPS2553DBVT-1: The adjustable current limit (set by an external resistor between the ILIM pin and ground) lets you dial in the trip point between 0.5 A and the 1.5 A maximum, making it a common choice for USB ports, set-top boxes, and industrial sensor power rails.

Slew-rate control and fault flag for downstream sequencing

The slew-rate controlled turn-on limits inrush current into capacitive loads — the ramp time is fixed internally, so you don't need an extra soft-start capacitor. A status flag output (open-drain, active low) asserts when the switch is in current-limit or thermal-shutdown, which a system microcontroller can read to trigger a retry or log the fault.

Frequently asked questions

How to adjust the current limit on TPS2553DBVT-1?

The current limit is adjustable via an external resistor connected between the ILIM pin and ground. The datasheet provides a resistor-value table for trip points from 0.5 A up to the 1.5 A maximum output. The resistor sets the reference current that the internal sense amplifier compares against the load current.

Can TPS2553DBVT-1 handle 5V input and output continuously?

Yes. The load voltage range is 2.5 V to 6.5 V, so 5 V continuous operation is well within the rated envelope. The 85 mOhm Rds(on) at 5 V yields about 425 mV drop at 1.5 A — factor that into the downstream rail budget.