MAX98303 is a high-efficiency stereo 3.1W Class D amplifier from Maxim that offers five selectable gain settings (6dB, 9dB, 12dB, 15dB, and 18dB) set by a single gain-select input (GAIN).
The MAX98303 is a stereo 3.1 W Class D audio amplifier that delivers Class AB performance with Class D efficiency. It offers five selectable gain settings, active emissions limiting, edge‑rate control, and click‑and‑pop suppression, all in a compact 1.68 mm × 1.68 mm × 0.64 mm WLP package.
The datasheet provides electrical characteristics, absolute maximum ratings, typical operating curves, and package information. It also describes recommended layout, grounding, and application examples such as notebooks, tablets, and portable audio players.
| Quiescent Supply Current | 2.0 mA (3.7 V) / 3.1 mA (5 V) |
|---|---|
| Maximum Output Power | 3.1 W per channel at 5 V |
| Efficiency | up to 93 % |
| Gain Settings | 5 selectable gains: 6 dB, 9 dB, 12 dB, 15 dB, 18 dB |
| Output Current Limit | 2 A |
| Thermal Shutdown Level | 145 °C |
The device draws 2.0 mA at 3.7 V and 3.1 mA at 5 V supply voltage.
It provides five selectable gain settings: 6 dB, 9 dB, 12 dB, 15 dB, and 18 dB.
The amplifier can deliver up to 3.1 W per channel when powered at 5 V.