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LM4666SDX from NS,National Semiconductor

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LM4666SDX

Manufacturer: NS

Filterless High Efficiency Stereo 1.2W Switching Audio Amplifier

Partnumber Manufacturer Quantity Availability
LM4666SDX NS 94500 In Stock

Description and Introduction

Filterless High Efficiency Stereo 1.2W Switching Audio Amplifier The LM4666SDX 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  
- **Efficiency:** Up to 90% (Class D operation)  
- **THD+N:** <1% (typical)  
- **Shutdown Current:** <1µA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin WSON (SDX)  

### **Descriptions and Features:**  
- **Class D Operation:** Provides high efficiency, reducing power dissipation.  
- **Low Quiescent Current:** 4mA (typical) for battery-powered applications.  
- **Thermal and Short-Circuit Protection:** Enhances reliability.  
- **Filterless Operation:** Eliminates the need for external LC filters.  
- **Pop-and-Click Suppression:** Minimizes audible noise during power-up/down.  
- **Applications:** Portable audio devices, mobile phones, PDAs, and other battery-powered systems.  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Filterless High Efficiency Stereo 1.2W Switching Audio Amplifier

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