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LM4879SD from NS,National Semiconductor

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LM4879SD

Manufacturer: NS

1.1 Watt Audio Power Amplifier

Partnumber Manufacturer Quantity Availability
LM4879SD NS 456 In Stock

Description and Introduction

1.1 Watt Audio Power Amplifier The LM4879SD is a mono bridged audio power amplifier manufactured by National Semiconductor (NS).  

**Specifications:**  
- **Output Power:** 3W into a 3Ω load at 5V  
- **Supply Voltage Range:** 2.0V to 5.5V  
- **Quiescent Current:** 2.6mA (typical)  
- **Shutdown Current:** 0.1μA (typical)  
- **THD+N:** 1% (typical) at 1W into 4Ω  
- **Gain:** Internally fixed at 6dB  
- **Package:** 8-pin SOIC (SD)  

**Descriptions and Features:**  
- Designed for battery-powered applications  
- Bridge-tied load (BTL) configuration eliminates the need for output coupling capacitors  
- Low quiescent current extends battery life  
- Thermal shutdown protection  
- Short-circuit and overvoltage protection  
- Pop-and-click suppression circuitry  
- Unity-gain stable  
- No external compensation required  
- Space-saving surface-mount package  

The LM4879SD is optimized for portable audio applications such as mobile phones, PDAs, and portable media players.

Application Scenarios & Design Considerations

1.1 Watt Audio Power Amplifier

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