TPA0132 is a 2.8W stereo audio power amplifier with DC volume control, compatible with PC 99 desktop line-out, output power can reach 2.8W/channel, internal gain control, eliminating external gain setting resistors.
The TPA0132 is a stereo audio power amplifier in a 24‑pin TSSOP PowerPAD™ package that delivers 2.8 W continuous RMS per channel into 3‑Ω loads. It features a 31‑step DC volume control ranging from +20 dB to –40 dB, built‑in depop circuitry to eliminate speaker transients, and an internal input MUX for dual stereo inputs.
The device consumes only 10 mA in normal operation and 150 µA in shutdown mode, and its PowerPAD package provides excellent thermal performance (≈35 °C/W). It is specified for operation from –40 °C to 85 °C ambient temperature and supports both bridge‑tied load (BTL) and single‑ended (SE) configurations.
| Output Power (per channel) | 2.8 W RMS into 3 Ω |
|---|---|
| Supply Voltage (Vpp) | 4.5 V – 5.5 V |
| Supply Current (normal operation) | 10 mA |
| Operating Temperature Range | -40 °C to 85 °C (ambient) |
The VOLUME terminal provides 31 discrete steps covering a gain range from +20 dB down to –40 dB.
It draws only about 10 mA of supply current during normal operation.
The device is muted when the VOLUME terminal voltage exceeds 3.54 V.
The PowerPAD package achieves a thermal impedance of approximately 35 °C/W.