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TPA301DR

TPA301DR Texas Instruments Class AB Audio Amp, 700 mW

MPNTPA301DR
End of Life

Texas Instruments TPA301DR Class AB audio amplifier, 1-Channel (Mono), 700 mW output into 8 Ω, 2.5 V to 5.5 V supply, 8-SOIC surface mount package.

$1.23Ref. price · indicative, final on quote
Texas Instruments TPA301DR datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPA301DR specifications
ParameterValue
TypeClass AB
Output type1-Channel (Mono)
MountingSurface Mount
Supply voltage2.5V ~ 5.5V
Max output power x channels @ load700mW x 1 @ 8Ohm
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesShort-Circuit and Thermal Protection, Shutdown
Case8-SOIC (0.154\", 3.90mm Width)

Product details

700 mW into 8 Ω — the headline output power

The TPA301DR delivers 700 mW into an 8 Ω load from a single-channel (mono) Class AB output stage — enough to drive a small speaker or headphone in a portable device without an external heatsink.

Protection features and shutdown

Built-in short-circuit and thermal protection prevent damage if the output is accidentally shorted or the die overheats — the amplifier shuts down and auto-recovers when the fault clears. A dedicated shutdown pin lets the system microcontroller put the amplifier into a low-power idle state when audio is not needed, saving battery current.

ROHS3 compliant, with no restricted substances above the threshold — no special handling or documentation required for EU-market shipments.

Frequently asked questions

What is the output power of TPA301DR into an 8 ohm load?

The TPA301DR delivers 700 mW maximum output power into an 8 Ω load from a single channel (mono) at the rated supply voltage.

Is TPA301DR a direct replacement for TPA301?

The TPA301DR is the tape-and-reel variant of the TPA301 in the same 8-SOIC package. The electrical specifications are identical — the only difference is the packaging format for automated assembly.