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Texas Instruments LM49270SQE/NOPB — Memory (DRAM / SRAM / Flash / EEPROM)
Texas Instruments

LM49270SQE/NOPB Class D Audio Amplifier, 2.2W x 2 @ 4Ω

MPNLM49270SQE/NOPB
End of Life

Texas Instruments Boomer® series, Class D audio amplifier, 2-Channel (Stereo) with Stereo Headphones, 2.4V ~ 5.5V supply, -40°C ~ 85°C, Surface Mount 28-WFQFN Exposed Pad, 28-WQFN (5x5).

$2.79Ref. price · indicative, final on quote
LM49270SQE/NOPB datasheet
Packaging28-WFQFN Exposed Pad
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

LM49270SQE/NOPB Technical Specifications
ParameterValue
TypeClass D
SeriesBoomer®
Output type2-Channel (Stereo) with Stereo Headphones
Mounting typeSurface Mount
Voltage2.4V ~ 5.5V
Max output power x channels @ load2.2W x 2 @ 4Ohm; 177mW x 2 @ 16Ohm
Operating temperature-40°C ~ 85°C (TA)
PackageBulk
Features3D, Depop, I²C, Short-Circuit and Thermal Protection, Shutdown, Volume Control
Case28-WFQFN Exposed Pad

Product details

Class D stereo amplifier with headphone output — what this part does

The Texas Instruments LM49270SQE/NOPB is a Boomer® series Class D audio amplifier delivering 2.2W per channel into 4Ω speakers and 177mW per channel into 16Ω headphones from a single 2.4V to 5.5V supply.

Output power and load matching

Rated at 2.2W x 2 into 4Ω and 177mW x 2 into 16Ω, this part is sized for small speakers (4Ω) and standard headphones (16Ω).

Sourcing and lifecycle

Listed as Active by Texas Instruments with no NRND or EOL notice. The Boomer® series is a mature audio line, so the LM49270SQE/NOPB is a stable BOM line for production builds. Sourced and quoted to order through independent distribution.

Frequently asked questions

Is the LM49270SQE/NOPB still active or obsolete?

The LM49270SQE/NOPB is listed as Active by Texas Instruments with no end-of-life notice. It remains a current-production part suitable for new designs and production BOMs.

What is the output power of LM49270SQE/NOPB?

It delivers 2.2W per channel into 4Ω speakers and 177mW per channel into 16Ω headphones, both in stereo.

Is LM49270SQE/NOPB compatible with 3.3V supply?

Yes, the supply range is 2.4V to 5.5V, so a 3.3V rail is well within the operating window.

What is the closest pin-compatible alternative to LM49270SQE/NOPB?

No pin-compatible second source is listed in the Texas Instruments Boomer® family. For a functional alternative, look at other Boomer® Class D parts with I²C volume control, but verify the package (28-WQFN) and output power match your design.