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LM4879IBP from NSC,National Semiconductor

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LM4879IBP

Manufacturer: NSC

1.1 Watt Audio Power Amplifier

Partnumber Manufacturer Quantity Availability
LM4879IBP NSC 250 In Stock

Description and Introduction

1.1 Watt Audio Power Amplifier The LM4879IBP is a mono bridged audio power amplifier manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Power:** 3W (into 4Ω at 5V)  
- **Supply Voltage Range:** 2.0V to 5.5V  
- **Shutdown Current:** <1µA  
- **Quiescent Current:** 2.6mA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical at 1W into 4Ω)  
- **PSRR (Power Supply Rejection Ratio):** 70dB (at 217Hz)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin PDIP  

### **Descriptions and Features:**  
- Designed for battery-powered applications.  
- Requires minimal external components.  
- Features a low-power consumption shutdown mode.  
- Internal thermal shutdown protection.  
- No output coupling capacitors required.  
- Unity-gain stable.  
- Improved pop and click suppression.  
- Optimized for driving speakers with 4Ω or 8Ω impedance.  

This device is commonly used in portable electronics such as mobile phones, PDAs, and portable media players.

Application Scenarios & Design Considerations

1.1 Watt Audio Power Amplifier

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