The XPT9971 is a high‑efficiency AB/D class audio power amplifier with built‑in protection and a 2.0‑5.5 V supply range.
The XPT9971 audio power amplifier from Xiput Technology offers AB/D class operation with low FM interference, high efficiency and a compact MSOP, SOP or DFN package. It provides up to 6 W output at 5 V supply into a 2 Ω load while keeping THD below 10 %.
The device includes integrated over‑heat, under‑voltage and over‑current protection, a shutdown mode with minimal leakage, and does not require external coupling or bootstrap capacitors. Typical applications include laptops, desktop PCs, low‑voltage speaker systems and USB‑powered multimedia audio. This manual is written in Chinese.
| Supply voltage range | 2.0 V – 5.5 V |
|---|---|
| Gain‑bandwidth product | 2.5 MHz |
| Maximum output power (5 V, 2 Ω) | 6 W |
| THD+N (1 kHz) | < 10 % |
| Operating temperature (recommended) | -40 °C – 85 °C |
The XPT9971 operates from 2.0 V up to 5.5 V.
At a 5 V supply and a 2 Ω load, it can deliver up to 6 W of audio power.
Yes, it has built‑in over‑current protection that shuts the output off when a short‑circuit is detected.