The XPT9305 is a single‑channel Class‑D audio power amplifier with up to 5 W output, wide supply range and built‑in overheat protection.
The XPT9305 is a single‑channel Class‑D audio power amplifier designed for portable and low‑voltage audio systems. It operates from 2.0 V to 5.5 V, delivers up to 5 W into a 2 Ω load, and features adjustable external gain, automatic overheat shutdown, and no need for output coupling or bootstrap capacitors.\n\nThe manual provides pin definitions, electrical specifications, typical application circuits, layout recommendations, and details on the modulation scheme. It also includes ordering information, packaging dimensions, and guidance for minimizing noise with proper decoupling and input filtering. This manual is written in Chinese.
| Maximum Output Power | 5 W (2 Ω load), 3 W (4 Ω load) |
|---|---|
| Supply Voltage Range | 2.0 V – 5.5 V |
| Static Power Consumption (Iq) | 6 mA (no‑load) |
| Overheat Protection | Automatic shutdown on over‑temperature |
The XPT9305 can deliver up to 5 W into a 2 Ω load (and 3 W into a 4 Ω load).
It operates from 2.0 V to 5.5 V.
No, the output does not need external coupling or bootstrap capacitors.
The chip includes an automatic overheat shutdown mechanism that disables the device when it exceeds its temperature limit.