LM4667MMBD
FEATURES
- 2 No Output Filter Required for Inductive Transducers
- Selectable Gain of 6d B or 12d B
- Very Fast Turn on Time: 5ms (typ)
- Minimum External ponents
- "Click and Pop" Suppression Circuitry
- Micro-Power Shutdown Mode
- Short Circuit Protection
- Space-Saving DSBGA and VSSOP Packages
KEY SPECIFICATIONS
- Efficiency at 3V, 100m W into 8Ω Transducer 74% (typ)
- Efficiency at 3V, 450m W into 8Ω Transducer 84% (typ)
- Efficiency at 5V, 1W into 8Ω Transducer 86% (typ)
- Total Quiescent Power Supply Current: 3.5m A (typ)
- Total Shutdown Power Supply Current: 0.01μA (typ)
- Single Supply Range: 2.7V to 5.5V
APPLICATIONS
- Mobile Phones
- PDAs
- Portable Electronic Devices
DESCRIPTION
The LM4667 is a fully integrated single-supply high efficiency switching audio amplifier. It features an innovative modulator that eliminates the LC output filter used with typical switching amplifiers. Eliminating the output filter reduces parts count, simplifies circuit design, and reduces board...
