1 Features
• Built-In SpeakerGuardTM Automatic Gain Control
(AGC) with Enhanced Battery Tracking
– Limits Battery Current Consumption
– Prevents Audio Clipping
• 2 W into 8 Ω Load From 3.6 V Supply (6% THD)
• Integrated Adaptive Boost Converter
– Increases Efficiency at Low Output Power
• Low Quiescent Current of 1.7 mA from 3.6 V
• Operates From 2.5 V to 5.2 V
• Thermal and Short-Circuit Protection with Auto
Recovery
• Three Gain Settings: 6 dB, 15.5 dB, and 20 dB
• Independent Control for Boost and Class-D
• Pin-to-Pin Compatible with TPA2013D1
• Available in 1.954 mm × 1.954 mm 16-ball DSBGA
Package

2 Applications
• Cell Phones, PDA, GPS
• Portable Electronics and Speakers

3 Description
The TPA2015D1 is a high efficiency Class-D audio
power amplifier with battery-tracking SpeakerGuard™
AGC technology and an integrated adaptive boost
converter that enhances efficiency at low output
power. It drives up to 2 W into an 8 Ω speaker (6%
THD). With 85% typical efficiency, the TPA2015D1
helps extend battery life when playing audio.
The built-in boost converter generates a 5.5 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
SpeakerGuardTM AGC adjusts the Class-D gain to
limit battery current and prevent heavy clipping.
The TPA2015D1 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 TPA2015D1 is available in a space saving 1.954
mm × 1.954 mm, 0.5 mm pitch DSBGA package
(YZH).