150-mW Stereo Headphone Audio Amplifier, Pin Compatible with LM4880 and LM4881


Product details


Output power (W) 0.15 Analog supply (Min) (V) 2.5 Analog supply (Max) (V) 5.5 PSRR (dB) 83 Rating Catalog Operating temperature range (C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (uA) 1 Architecture Class-AB Iq per channel (Typ) (mA) 0.75 open-in-new Find other Headphone amps

Package | Pins | Size

HVSSOP (DGN) 8 9 mm² 3 x 3 SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other Headphone amps


  • 150-mW Stereo Output
  • PC Power Supply Compatible
    • Fully Specified for 3.3-V and
      5-V Operation
    • Operation to 2.5 V
  • Pop Reduction Circuitry
  • Internal Midrail Generation
  • Thermal and Short-Circuit Protection
  • Surface-Mount Packaging
    • PowerPAD™ MSOP
    • SOIC
  • Pin Compatible With TPA122, LM4880, and LM4881 (SOIC)
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The TPA6111A2 is a stereo audio power amplifier packaged in either an 8-pin SOIC or an 8-pin PowerPAD MSOP package capable of delivering 150 mW of continuous RMS power per channel into 16-Ω loads. Amplifier gain is externally configured by means of two resistors per input channel and does not require external compensation for settings of 0 to 20 dB.

THD+N, when driving a 16-Ω load from 5 V, is 0.03% at 1 kHz, and less than 1% across the audio band of 20 Hz to 20 kHz. For 32-Ω loads, the THD+N is reduced to less than 0.02% at 1 kHz, and is less than 1% across the audio band of 20 Hz to 20 kHz. For 10-kΩ loads, the THD+N performance is 0.005% at 1 kHz, and less than 0.5% across the audio band of 20 Hz to 20 kHz.

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Technical documentation

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Type Title Date
* Datasheet TPA6111A2 150-mW Stereo Audio Power Amplifier datasheet (Rev. C) Mar. 31, 2016
Application notes Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application notes AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019
User guides TPA6111A2MSOPEVM - User Guide Nov. 17, 2000
Application notes A Low-Cost, Single Coupling Capacitor Config. for Stereo Headphone Amplifiers Dec. 22, 1999

Design & development

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CAD/CAE symbols

Package Pins Download
HVSSOP (DGN) 8 View options
SOIC (D) 8 View options

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