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LM4673SD/NOPB from NSC,National Semiconductor

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LM4673SD/NOPB

Manufacturer: NSC

Filterless, 2.65W, Mono, Class D Audio Power Amplifier 8-WSON -40 to 85

Partnumber Manufacturer Quantity Availability
LM4673SD/NOPB,LM4673SDNOPB NSC 56 In Stock

Description and Introduction

Filterless, 2.65W, Mono, Class D Audio Power Amplifier 8-WSON -40 to 85 The LM4673SD/NOPB is a mono 2.65W Class D audio amplifier manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Power:** 2.65W (into 4Ω at 5V, THD+N = 10%)  
- **Supply Voltage Range:** 2.4V to 5.5V  
- **Efficiency:** Up to 90%  
- **THD+N (Total Harmonic Distortion + Noise):** 0.3% (typical at 1W into 4Ω)  
- **Shutdown Current:** <1µA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin WSON  

### **Descriptions and Features:**  
- **Class D Operation:** Provides high efficiency with low power dissipation.  
- **Low Quiescent Current:** 2.4mA (typical) for battery-powered applications.  
- **Pop-and-Click Suppression:** Minimizes audible noise during power-up and shutdown.  
- **Thermal Shutdown Protection:** Prevents damage from excessive heat.  
- **Short-Circuit Protection:** Safeguards the device under fault conditions.  
- **Small Footprint:** Suitable for space-constrained designs.  

This device is designed for portable audio applications such as smartphones, tablets, and portable media players.

Application Scenarios & Design Considerations

Filterless, 2.65W, Mono, Class D Audio Power Amplifier 8-WSON -40 to 85

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