The TPA122 is a stereo audio power amplifier capable of delivering 150mW of continuous RMS power per channel. It features PC power supply compatibility, internal midrail generation, thermal protection, and short-circuit protection.
The TPA122 is a stereo audio power amplifier offered in 8‑pin SOIC and PowerPAD MSOP packages. It delivers up to 150 mW continuous RMS power per channel into 8‑Ω loads and includes thermal and short‑circuit protection.
Key specifications include a supply voltage range of 2.7 V‑5.5 V, typical supply current of 1.5‑3 mA, THD+N of 0.1 % at 1 kHz, and input impedance greater than 1 MΩ. Mechanical drawings for both package types are provided, along with recommended operating conditions and typical performance graphs.
| THD+N (5 V, 8 Ω load) | 0.1 % at 1 kHz |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V |
| Supply Current (typical) | 1.5 mA – 3 mA |
| Input Impedance | >1 MΩ |
| Protection Features | Thermal and short‑circuit protection |
The TPA122 operates from 2.7 V up to 5.5 V.
It includes thermal and short‑circuit protection.
THD+N is 0.1 % at 1 kHz when powered from 5 V.