FAB3103 — 2.
3 Watt Class-D Audio Amplifier with Integrated Boost
Regulator and Automatic Gain Control
July 2012
FAB3103 2.
3 Watt Class-D Audio Amplifier with Integrated Boost
Regulator and Automatic Gain Control
Features
High Output, Low Distortion Class-D Mono
Speaker Amplifier
o 2.
3W into 8Ω from 3.
6V Supply (10% THD+N) o 1.
85W into 8Ω from 3.
6V Supply (1% THD+N) o 0.
01% THD+N into 8Ω (100mW)
High-Efficiency Boost
Regulator Provides Higher
Output Power Over Li-Ion Battery Voltages
o 85% Total Efficiency (3.
6V, 8Ω, PO = 1.
0W)
Adaptive Boost Shutdown at Lower Output Power
Increases Efficiency and Reduces Quiescent Current Consumption:
o IDD = 2.
7mA from 3.
6V Supply
Automatic Gain ...