Minimal External Components Required

1.6-V to 3.6-V Supply Voltage Range

50-mW Stereo Output

Low Supply Current . . . 0.75 mA

Low Shutdown Current . . . 50 nA

Gain Set Internally to 2 dB

Pop Reduction Circuitry

Internal Mid-Rail Generation

Thermal and Short-Circuit Protection

Surface-Mount Packaging

− 3-mm
5-mm MSOP Package (DGN)

− 5-mm
6-mm SOIC Package (D)

− 2,5-mm
2,5-mm MicroStar Junior BGA

Package (ZQY)

description

The TPA6101A2 is a stereo audio power amplifier packaged in an 8-pin SOIC package, an 8-pin MSOP

package, or a 15-ball BGA package, capable of delivering 50 mW of continuous RMS power per channel into

16-Ω loads. Amplifier gain is internally set to 2 dB (inverting) to save board space by eliminating six external

resistors.

The TPA6101A2 is optimized for battery applications because of its low supply current, shutdown current, and

THD+N. To obtain the low-supply-voltage range, the TPA6101A2 biases BYPASS to VDD/4.

When driving a 16-Ω load with 40-mW output power from 3.3 V, THD+N is 0.08% at 1 kHz, and less than 0.2%

across the audio band of 20 Hz to 20 kHz. For 30 mW into 32-Ω loads, the THD+N is reduced to less than 0.06%

at 1 kHz, and is less than 0.3% across the audio band of 20 Hz to 20 kHz.