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Texas Instruments TPA311DGN — Analog & Data Acquisition

TPA311DGN Class AB Mono Amp, 700mW, 8-HVSSOP

MPNTPA311DGN
End of Life

Texas Instruments TPA311DGN, Class AB mono audio amplifier, 700mW x 1 @ 8Ohm, 2.5V to 5.5V supply, 8-HVSSOP exposed pad, tube, active.

$1.64Ref. price · indicative, final on quote
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPA311DGN 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)
PackageTube
FeaturesDepop, Short-Circuit and Thermal Protection, Shutdown
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) Exposed Pad

Product details

700 mW mono amplifier for portable audio

The TPA311DGN: The output is a single channel (mono), so a stereo application requires two devices. The 700 mW figure is the max output per channel into 8 Ohm; at lower impedance the output current limit governs the available swing.

Protection set and temperature grade

Built-in depop circuitry suppresses turn-on/turn-off clicks — no external mute transistor needed in the audio path. Short-circuit and thermal protection shut the output stage before the die exceeds the safe junction temperature, which matters when the amplifier drives a speaker that may be shorted during assembly or field use.

Supplied in an 8-pin HVSSOP with exposed pad (MSOP-8 / TSSOP-8 footprint, 3.00 mm width). Shipped in tube format, not tape-and-reel.

ROHS3 compliant per the current declaration, so it passes the EU RoHS threshold for the ten restricted substances including the four phthalates. Because it is active and single-sourced from TI, the BOM risk is low as long as the part stays in the catalog. No pin-compatible second source is published; if a hedge is needed, the parametric equivalent from the same family (different package or output power) is the usual fallback.

Frequently asked questions

What is the output power of TPA311DGN into 8 ohms?

This is the maximum output per channel; actual power depends on supply voltage, load impedance, and thermal management of the exposed pad.