The LM4670SDX/NOPB is an integrated audio amplifier solution from Texas Instruments, designed to deliver high-quality sound with minimal power consumption. This makes it an ideal choice for portable applications where power efficiency is crucial.
Key Features
- Output Power: The LM4670SDX/NOPB is capable of delivering 2.5W of continuous output power with a 4-ohm load and 5V power supply, providing a robust audio performance for its size.
- Efficiency: With an advanced 3D enhancement and an efficiency of 90% at 400mW from a 5V supply, this amplifier ensures extended battery life in portable applications.
- Micro-Power Shutdown Mode: It features a micro-power shutdown mode with an ultra-low quiescent current, which helps in conserving power when the amplifier is not in use.
- Thermal Protection: The device includes built-in thermal shutdown protection, safeguarding the IC from potential damage due to overheating.
Applications
The LM4670SDX/NOPB is versatile and can be used in a variety of applications, including:
- Mobile phones and PDAs
- Portable media players
- Handheld gaming devices
- Notebook computers
Technical Specifications
| Parameter |
Value |
| Operating Voltage Range |
2.4V to 5.5V |
| Output Power (4Ω Load) |
2.5W (Typical) |
| Shutdown Current |
0.7µA (Typical) |
| Package |
LLP-10 (4 mm x 4 mm) |
| Operating Temperature |
-40°C to 85°C |
The LM4670SDX/NOPB is available in a small 10-pin leadless leadframe package (LLP) and is designed for easy integration into various electronic devices. Its high level of integration reduces the need for external components, simplifying the design and reducing overall system cost.