Product details

Output power (W) 0.138 Analog supply (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 109 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.08 Architecture Class-AB Iq per channel (typ) (mA) 4.2
Output power (W) 0.138 Analog supply (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 109 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.08 Architecture Class-AB Iq per channel (typ) (mA) 4.2
WQFN (RTJ) 20 16 mm² 4 x 4
  • DirectPath™ Ground-Referenced Outputs
    • Eliminates Output DC Blocking Capacitors
    • Reduces Board Area
    • Reduces Component Height and Cost
    • Full Bass Response Without Attenuation
  • Power Supply Voltage Range: 2.5 V to 5.5 V
  • High Power Supply Rejection Ratio
    (>100 dB PSRR)
  • Differential Inputs for Maximum Noise Rejection
    (69 dB CMRR)
  • High-Impedance Outputs When Disabled
  • Advanced Pop and Click Suppression Circuitry
  • GPIO Control for Shutdown
  • 20 Pin, 4 mm × 4 mm WQFN Package
  • DirectPath™ Ground-Referenced Outputs
    • Eliminates Output DC Blocking Capacitors
    • Reduces Board Area
    • Reduces Component Height and Cost
    • Full Bass Response Without Attenuation
  • Power Supply Voltage Range: 2.5 V to 5.5 V
  • High Power Supply Rejection Ratio
    (>100 dB PSRR)
  • Differential Inputs for Maximum Noise Rejection
    (69 dB CMRR)
  • High-Impedance Outputs When Disabled
  • Advanced Pop and Click Suppression Circuitry
  • GPIO Control for Shutdown
  • 20 Pin, 4 mm × 4 mm WQFN Package

The TPA6133A2 is a stereo DirectPath™ headphone amplifier with GPIO control. The TPA6133A2 has minimal quiescent current consumption, with a typical IDD of 4.2 mA, making it optimal for portable applications. The GPIO control allows the device to be put in a low power shutdown mode.

The TPA6133A2 is a high fidelity amplifier with an SNR of 93 dB. A PSRR greater than 100 dB enables direct-to-battery connections without compromising the listening experience. The output noise of 12 µVrms (typical A-weighted) provides a minimal noise background during periods of silence. Configurable differential inputs and high CMRR allow for maximum noise rejection in the noisy environment of a mobile device.

The TPA6133A2 is a stereo DirectPath™ headphone amplifier with GPIO control. The TPA6133A2 has minimal quiescent current consumption, with a typical IDD of 4.2 mA, making it optimal for portable applications. The GPIO control allows the device to be put in a low power shutdown mode.

The TPA6133A2 is a high fidelity amplifier with an SNR of 93 dB. A PSRR greater than 100 dB enables direct-to-battery connections without compromising the listening experience. The output noise of 12 µVrms (typical A-weighted) provides a minimal noise background during periods of silence. Configurable differential inputs and high CMRR allow for maximum noise rejection in the noisy environment of a mobile device.

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Technical documentation

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Type Title Date
* Data sheet TPA6133A2 138-mW DirectPath™ Stereo Headphone Amplifier datasheet (Rev. B) PDF | HTML 11 Sep 2014
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019
EVM User's guide TPA6133A2 EVM User's Guide (Rev. A) 31 May 2017

Design & development

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Evaluation board

TPA6133A2EVM — Evaluation Board for TPA6133A2 DirectPath™ Headphone Amplifier

The TPA6133A2 is a DirectPath™ stereo headphone amplifier capable of delivering 138 mW/Ch into 16Ω and requires no output DC blocking capacitors. It has a fixed gain of +4 dB.

The TPA6133A2EVM is a complete, stand-alone audio board. It contains the TPA6133A2QFN (RTJ) DirectPath™ stereo (...)

User guide: PDF
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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WQFN (RTJ) 20 View options

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