The SSM2301 is a fully integrated, high efficiency, Class-D audio amplifier designed for use in mobile phones, MP3 players, portable gaming devices, portable electronics, and educational toys.
The SSM2301 is a fully integrated, filterless Class‑D audio amplifier designed for mobile and portable electronics. It delivers up to 1.4 W into an 8 Ω load from a 5 V supply while maintaining less than 1 % THD+N and an efficiency of about 85 %.
The device operates from a single 2.5 V‑5 V supply, includes pop‑and‑click suppression, short‑circuit and thermal protection, and offers selectable gain of 6 dB or 12 dB. It is available in 8‑lead LFCSP and MSOP packages.
| Output Power | 1.4 W into 8 Ω at 5 V |
|---|---|
| Efficiency | 85 % at 1.4 W into 8 Ω |
| Signal‑to‑Noise Ratio | ≥ 98 dB |
| Supply Voltage Range | 2.5 V – 5.0 V |
| Shutdown Current | 20 nA |
| Gain Options | 6 dB or 12 dB (pin selectable) |
The shutdown current is 20 nA.
Gain can be set to 6 dB or 12 dB via the GAIN pin, and can also be adjusted externally with a resistor.
It achieves about 85 % efficiency when delivering 1.4 W into an 8 Ω load.
The device operates from a single supply of 2.5 V to 5.0 V.