GENERAL DESCRIPTION
The SSM2375 is a fully integrated, high efficiency, Class-D audio amplifier. It is designed to maximize performance for mobile phone applications. The application circuit requires a minimum of external components and operates from a single 2.5 V to 5.5 V supply. It is capable of delivering 3 W of continuous output power with <1% THD + N driving a 3 Ω load from a 5.0 V supply.

FEATURES
   Filterless Class-D amplifier with spread-spectrum
      Σ-Δ modulation
   3 W into 3 Ω load and 1.4 W into 8 Ω load at 5.0 V supply
      with <1% total harmonic distortion (THD + N)
   93% efficiency at 5.0 V, 1.4 W into 8 Ω speaker
   >100 dB signal-to-noise ratio (SNR)
   High PSSR at 217 Hz: 80 dB
   Flexible gain adjustment pin: 0 dB to 12 dB in 3 dB steps
   Fixed input impedance: 80 kΩ
   User-selectable ultralow EMI emissions mode
   Single-supply operation from 2.5 V to 5.5 V
   20 nA shutdown current
   Short-circuit and thermal protection with autorecovery
   Available in 9-ball, 1.5 mm × 1.5 mm WLCSP
   Pop-and-click suppression

APPLICATIONS
   Mobile phones
   MP3 players
   Portable electronics