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Texas Instruments LM4674ATLX — Logic ICs
Texas Instruments

LM4674ATLX Class D Audio Amp, 2.5W x 2 @ 4Ω, DSBGA-16

MPNLM4674ATLX
End of Life

Texas Instruments Boomer®, PowerWise® series, Class D Audio Amplifier, 2-Channel (Stereo), 2.5W x 2 @ 4Ohm, 2.4V ~ 5.5V supply, -40°C ~ 85°C, 16-WFBGA/DSBGA package, Surface Mount.

$0.47Ref. price · indicative, final on quote
LM4674ATLX datasheet
Packaging16-WFBGA, DSBGA
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

LM4674ATLX Technical Specifications
ParameterValue
TypeClass D
SeriesBoomer®, PowerWise®
Output type2-Channel (Stereo)
Mounting typeSurface Mount
Voltage2.4V ~ 5.5V
Max output power x channels @ load2.5W x 2 @ 4Ohm
Operating temperature-40°C ~ 85°C (TA)
PackageBulk
FeaturesDepop, Differential Inputs, PWM, Short-Circuit Protection, Shutdown
Case16-WFBGA, DSBGA

Product details

What this stereo Class D amplifier brings to a BOM

The Texas Instruments LM4674ATLX is a Boomer® and PowerWise® series Class D audio amplifier delivering 2.5W per channel into a 4Ω load from a 2.4V to 5.5V supply. It integrates differential inputs, PWM modulation, short-circuit protection, and a depop feature that suppresses turn-on clicks.

Supply range and output power — sizing the audio rail

Rated for 2.4V to 5.5V, this part runs directly from a single Li-ion cell or a 3.3V/5V regulated rail. The 2.5W per channel into 4Ω is the headline number at the upper end of the supply range; at lower voltages the available power scales down proportionally. For a 3.7V Li-ion pack, expect roughly 1.5W to 2W per channel into 4Ω before clipping — enough for a loudspeaker in a portable Bluetooth speaker or a soundbar.

The 16-DSBGA package is a fine-pitch wafer-level ball grid array — no leads, no exposed pads. It requires a solder-paste stencil matched to the 2.5x2.12 mm footprint and a reflow profile compatible with lead-free assembly.

Frequently asked questions

What is the output power per channel of LM4674ATLX?

The LM4674ATLX delivers 2.5W per channel into a 4Ω load, stereo output, at the rated supply voltage.

What is the difference between LM4674ATLX and LM4674ATL?

The LM4674ATLX and LM4674ATL share the same Boomer® Class D amplifier core and 2.5W x 2 @ 4Ω output. The difference is in the package variant — the LX suffix indicates the 16-DSBGA (2.5x2.12 mm) wafer-level package, while the ATL variant uses a different package option. Verify the specific package code for your board footprint before ordering.