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2W Constant Output Class-D Audio Amplifier with Adaptive Boost (DC/DC) Converter


Package | PIN: YZG | 12
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $1.18
10-24 $1.06
25-99 $0.99
100-249 $0.86
250-499 $0.79
500-749 $0.66
750-999 $0.55
1000+ $0.50


  • Built-In Enhanced Battery Tracking Automatic
    Gain Control (AGC)
    • Limits Battery Current Consumption
  • 1.9 W into 8-Ω Load from 3.6-V Supply
    (1% THD+N)
  • Integrated Adaptive Boost Converter
    • Increases Efficiency at Low Output
  • Low Quiescent Current of 2 mA From 3.6 V
  • Thermal and Short-Circuit Protection With
    Auto Recovery
  • 20-dB Fixed Gain
  • Similar Performance to TPA2015D1
  • Available in 1.53-mm × 1.982-mm,
    0.5-mm Pitch 12-Ball WCSP Package

Texas Instruments  TPA2025D1YZGR

The TPA2025D1 is a high efficiency Class-D audio power amplifier with battery tracking AGC technology and an integrated Class-G boost converter that enhances efficiency at low output power. It drives up to 1.9 W into an 8-Ω speaker (1% THD+N). With 85% typical efficiency, the TPA2025D1 helps extend battery life when playing audio.

The built-in boost converter generates a 5.75-V supply voltage for the Class-D amplifier. This provides a louder audio output than a stand-alone amplifier directly connected to the battery. The battery tracking AGC adjusts the Class-D gain to limit battery current at lower battery voltage.

The TPA2025D1 has an integrated low-pass filter to improve the RF rejection and reduce DAC out-of-band noise, increasing the signal-to-noise ratio (SNR).

The TPA2025D1 is available in a space saving 1.53 mm × 1.982 mm, 0.5 mm pitch DSBGA package (YZG).