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LM4674

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Filterless 2.5 Stereo Class D Audio Power Amplifier

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Data sheet

LM4674

ACTIVE
Data sheet Order now

Product details

Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Control interface Hardware Output power (W) 2.5 Power stage supply (max) (V) 2.4 Power stage supply (min) (V) 5.5 THD + N at 1 kHz (%) 0.07 Load (min) (Ω) 4 Analog supply voltage (min) (V) 2.4 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Control interface Hardware Output power (W) 2.5 Power stage supply (max) (V) 2.4 Power stage supply (min) (V) 5.5 THD + N at 1 kHz (%) 0.07 Load (min) (Ω) 4 Analog supply voltage (min) (V) 2.4 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YZR) 16 5.0625 mm² 2.25 x 2.25 WQFN (RGH) 16 16 mm² 4 x 4
  • Output Short Circuit Protection
  • Stereo Class D Operation
  • No Output Filter Required
  • Logic Selectable Gain
  • Independent Shutdown Control
  • Minimum External Components
  • Click and Pop Suppression
  • Micro-Power Shutdown
  • Available in Space-Saving 2mm x 2mm x 0.6mm DSBGA, and 4mm x 4mm x 0.8mm WQFN Packages
  • Output Short Circuit Protection
  • Stereo Class D Operation
  • No Output Filter Required
  • Logic Selectable Gain
  • Independent Shutdown Control
  • Minimum External Components
  • Click and Pop Suppression
  • Micro-Power Shutdown
  • Available in Space-Saving 2mm x 2mm x 0.6mm DSBGA, and 4mm x 4mm x 0.8mm WQFN Packages

  • Efficiency at 3.6V, 100mW into 8Ω: 80% (typ)
  • Efficiency at 3.6V, 500mW into 8Ω: 85% (typ)
  • Efficiency at 5V, 1W into 8Ω: 85% (typ)
  • Quiescent Power Supply Current at 3.6V supply: 4mA
  • Power Output at VDD = 5V, RL = 4Ω, THD ≤ 10%: 2.5W (typ)
  • Shutdown Current: 0.03µA (typ)

  • Efficiency at 3.6V, 100mW into 8Ω: 80% (typ)
  • Efficiency at 3.6V, 500mW into 8Ω: 85% (typ)
  • Efficiency at 5V, 1W into 8Ω: 85% (typ)
  • Quiescent Power Supply Current at 3.6V supply: 4mA
  • Power Output at VDD = 5V, RL = 4Ω, THD ≤ 10%: 2.5W (typ)
  • Shutdown Current: 0.03µA (typ)
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* Data sheet LM4674 Boomer® Audio Power Amplifier Series Filterless 2.5W Stereo Class D Audio Power Amplifier datasheet (Rev. F) PDF | HTML 02 Jun 2025

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DSBGA (YZR) 16 Ultra Librarian
WQFN (RGH) 16 Ultra Librarian
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