GENERAL DESCRIPTION
The IS31AP2031 is a Class-G audio power amplifier with automatic gain control. It drives up to 2.0W (10% THD+N) into an 8Ω speaker from a 4.2V VDD supply.
The IS31AP2031 provides low cost, space saving solution for portable equipments which need audio output with higher power by boosting up supply voltage. Its external components just include a few capacitors and resistors (no inductor).

FEATURES
● Operates from 2.7V to 4.5V
● 2.0W into an 8Ω load from a 4.2V supply(10%
   THD+N)
● 4 gain levels: 12dB, 16dB, 24dB, 27.5dB
● AGC function
● Pulse Count Control serial interface
● 8kV HBM ESD
● Thermal and short-circuit protection
● Integrated Click-and-Pop suppression circuitry
● Available in QFN-20(3mm × 3mm) package

APPLICATIONS
● Smart phones
● Cellular phones
● PDAs
● GPS
● Portable electronics