| Audio input type | Analog Input |
| Architecture | Class-AB |
| Speaker channels (Max) | Mono |
| Power stage supply (Max) (V) | 5.5 |
| Power stage supply (Min) (V) | 2 |
| Load (Min) (ohms) | 8 |
| Output power (W) | 0.35 |
| THD + N @ 1 kHz (%) | 1 |
| Iq (Typ) (mA) | 1.5 |
| Control interface | Hardware |
| Closed/open loop | Open |
| Analog supply (Min) (V) | 2 |
| Analog supply (Max) (V) | 5.5 |
| Operating temperature range (C) | -40 to 85 |
- SOIC Surface Mount Packaging.
- Switch On/Off Click Suppression.
- Unity-Gain Stable.
- Minimum External Components.
Key Specifications
- THD+N at 1kHz, 350mW Continuous Average Output Power into 16? 10% (max)
- THD+N at 1kHz, 300mW Continuous Average Output Power into 8? 10% (max)
- Shutdown Current 0.7μA (typ)
All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.
The LM4818 is a mono bridged power amplifier that is capable of delivering 350mWRMS output power into a 16? load or 300mWRMS output power into an 8? load with 10% THD+N from a 5V power supply.
The LM4818 Boomer audio power amplifier is designed specifically to provide high quality output power and minimize PCB area with surface mount packaging and a minimal amount of external components. Since the LM4818 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable applications.
The closed loop response of the unity-gain stable LM4818 can be configured using external gain-setting resistors. The device is available in SOIC package type to suit various applications.