LM4671 Overview
The LM4671 is a single supply, high efficiency 2.5W switching audio amplifier. A low noise, filterless PWM architecture eliminates the output filter, reducing external ponent count, board area consumption, system cost, and simplifying design. The LM4671 is designed to meet the demands of mobile phones and other portable munication devices.
LM4671 Key Features
- Efficiency @ 3.6V, 100mW into
- Efficiency @ 3.6V, 400mW into
- Efficiency @ 5V, 1W into 8Ω
- Quiescent current, 3.6V supply
- Total shutdown power supply
- Single supply range
- No output filter required for inductive loads Externally configurable gain Very fast turn on time: 17μs (typ) Minimum ex
