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LM4871MM from NS,National Semiconductor

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LM4871MM

Manufacturer: NS

3W Audio Power Amplifier with Shutdown Mode

Partnumber Manufacturer Quantity Availability
LM4871MM NS 5360 In Stock

Description and Introduction

3W Audio Power Amplifier with Shutdown Mode The LM4871MM is a mono 3W 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:** 4mA (typical)  
- **Shutdown Current:** 0.6μA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical at 1W into 3Ω)  
- **Gain:** Fixed at 6dB  
- **Package:** 8-pin MSOP (MM)  

### **Descriptions:**  
The LM4871MM is designed for battery-powered applications, offering high efficiency with low power consumption. It features a shutdown mode to minimize power usage when inactive.  

### **Features:**  
- **Low Quiescent Current** (4mA typical)  
- **Shutdown Mode** (0.6μA current)  
- **Thermal Shutdown Protection**  
- **No Output Coupling Capacitors Required**  
- **Improved PSRR (Power Supply Rejection Ratio)**  
- **Short-Circuit and Thermal Protection**  

This amplifier is commonly used in portable audio devices such as mobile phones, PDAs, and portable media players.

Application Scenarios & Design Considerations

3W Audio Power Amplifier with Shutdown Mode

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