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LM48511SQ/NOPB from NSC,National Semiconductor

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LM48511SQ/NOPB

Manufacturer: NSC

3W, Ultra Low EMI, Mono Class D Audio Amplifier with Spread Spectrum 24-WQFN -40 to 85

Partnumber Manufacturer Quantity Availability
LM48511SQ/NOPB,LM48511SQNOPB NSC 513 In Stock

Description and Introduction

3W, Ultra Low EMI, Mono Class D Audio Amplifier with Spread Spectrum 24-WQFN -40 to 85 The LM48511SQ/NOPB is a mono Class D audio power amplifier manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Power:** Up to 2.8W into 4Ω at 5V  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Efficiency:** Up to 90% (Class D operation)  
- **THD+N (Total Harmonic Distortion + Noise):** <1% at 1W into 4Ω  
- **Shutdown Current:** <1μA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin LLP (Leadless Leadframe Package)  

### **Descriptions:**  
The LM48511SQ/NOPB is a high-efficiency, mono Class D audio amplifier designed for portable applications. It features low power consumption, a small footprint, and requires minimal external components.  

### **Features:**  
- **Low Quiescent Current:** 2.5mA (typical)  
- **Pop-and-Click Suppression:** Reduces audible noise during power-up/down  
- **Thermal and Short-Circuit Protection**  
- **Integrated Feedback:** Eliminates the need for external feedback resistors  
- **Bridge-Tied Load (BTL) Output**  
- **Selectable Shutdown Mode**  

This amplifier is commonly used in mobile phones, portable media players, and other battery-powered audio devices.

Application Scenarios & Design Considerations

3W, Ultra Low EMI, Mono Class D Audio Amplifier with Spread Spectrum 24-WQFN -40 to 85

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