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TPS2081D

TPS2081D Power Switch, 2-Channel High-Side, 500mA, 8-SOIC

MPNTPS2081D
End of Life

Texas Instruments TPS2081D general-purpose power switch, dual high-side N-channel, 1:1 input:output, 80mOhm typical Rds(on), 500mA max per output, 2.7V-5.5V load supply, 8-SOIC package, 0°C to 125°C operating junction temperature.

$2.25Ref. price · indicative, final on quote
Texas Instruments TPS2081D datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS2081D specifications
ParameterValue
Input typeNon-Inverting
Output typeN-Channel
TypeGeneral Purpose
MountingSurface Mount
Voltage - load2.7V ~ 5.5V
Voltage - supply (Vcc (Vdd))Not Required
Output current500mA
I/O channels2
InterfaceOn/Off
Operating temperature0°C ~ 125°C (TJ)
PackageTube
FeaturesStatus Flag
Rds on80mOhm
Case8-SOIC (0.154\", 3.90mm Width)
Fault protectionCurrent Limiting (Fixed), Over Temperature, UVLO
Output configurationHigh Side
Ratio - Input:Output1:1

Product details

Dual high-side power switch with integrated protection

Each output is rated for 500 mA continuous with a typical on-resistance of 80 mOhm, making it suited for distributing power to USB peripherals, logic loads, or general-purpose board-level switched rails. The switch is enabled by a logic-level On/Off interface with a non-inverting input; no external Vcc supply is needed because the gate drive is derived from the load voltage itself. Built-in fault protection includes fixed current limiting, over-temperature shutdown, and undervoltage lockout (UVLO). A status flag output reports overcurrent or overtemperature conditions, which can be tied to a host controller interrupt or a diagnostic LED. The switch operates over a load supply range of 2.7 V to 5.5 V and a junction temperature range of 0°C to 125°C, covering most commercial and industrial environments.

What the 80 mOhm Rds(on) and 500 mA rating mean for the BOM

The fixed current limit is not adjustable.

Package and footprint — 8-SOIC

It is ROHS3 compliant.

Frequently asked questions

Can TPS2081D be used as a high-side switch?

Yes, the TPS2081D is configured as a dual high-side N-channel switch. Each output switches the load supply voltage to the load, with the internal charge pump generating the gate drive from the load voltage itself.

What is the difference between TPS2081D and TPS2080D?

The TPS2081D and TPS2080D are both dual high-side switches in the same family. The primary difference is the current limit threshold: the TPS2081D is rated for 500 mA per output, while the TPS2080D is rated for a lower current (typically 250 mA per output). Pinout and package are identical, so they are drop-in replacements if the load current fits the lower limit.