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LM4666SD from NS,National Semiconductor

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LM4666SD

Manufacturer: NS

Filterless High Efficiency Stereo 1.2W Switching Audio Amplifier

Partnumber Manufacturer Quantity Availability
LM4666SD NS 24400 In Stock

Description and Introduction

Filterless High Efficiency Stereo 1.2W Switching Audio Amplifier The LM4666SD is a mono 2.5W audio power amplifier manufactured by Texas Instruments (NS).  

**Key Specifications:**  
- **Output Power:** 2.5W into 4Ω at 5V  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 0.2% (typical)  
- **Efficiency:** Up to 90% (Class D operation)  
- **Shutdown Current:** <1µA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 14-pin LLP (Leadless Leadframe Package)  

**Descriptions and Features:**  
- **Class D Operation:** Provides high efficiency with low power dissipation.  
- **Low Quiescent Current:** 4mA (typical) for power-saving applications.  
- **Thermal and Short-Circuit Protection:** Built-in safeguards for reliability.  
- **Pop-and-Click Suppression:** Minimizes noise during power-up/down.  
- **Small Footprint:** Suitable for space-constrained designs.  
- **Applications:** Portable audio devices, mobile phones, PDAs, and other battery-powered systems.  

This information is based solely on factual specifications from the manufacturer.

Application Scenarios & Design Considerations

Filterless High Efficiency Stereo 1.2W Switching Audio Amplifier

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