The SSM2375 is a fully integrated, high efficiency, Class-D audio amplifier. It is designed for portable and mobile applications with its small size and low power consumption. The amplifier features a spread-spectrum Σ-Δ modulation scheme that provides excellent performance with low distortion and high efficiency.
The SSM2375 is a fully integrated Class‑D audio amplifier designed for mobile and portable electronics. It operates from a single 2.5 V to 5.5 V supply, delivers up to 3 W continuous output into a 3 Ω load, and achieves 93 % efficiency at 1.4 W into 8 Ω. Features include spread‑spectrum modulation, flexible gain selection (0‑12 dB), ultralow‑EMI mode, pop‑and‑click suppression, and built‑in short‑circuit and thermal protection.
Typical applications are mobile phones, MP3 players and other portable devices. The device is offered in a halide‑free 9‑ball 1.5 mm × 1.5 mm wafer‑level chip‑scale package (WLCSP) and operates over an industrial temperature range of –40 °C to +85 °C.
| Supply voltage range | 2.5 V to 5.5 V |
|---|---|
| Efficiency at 1.4 W into 8 Ω | 93 % |
| Shutdown current | 20 nA |
| Gain control range | 0 dB to 12 dB |
It operates from 2.5 V to 5.5 V.
The shutdown current is typically 20 nA.
It reaches 93 % efficiency under those conditions.
Yes, it has built‑in circuitry to minimize voltage glitches during turn‑on and turn‑off.