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LM4880 from NS,National Semiconductor

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LM4880

Manufacturer: NS

Dual 200 mW Audio Power Amplifier with Shutdown Mode

Partnumber Manufacturer Quantity Availability
LM4880 NS 21550 In Stock

Description and Introduction

Dual 200 mW Audio Power Amplifier with Shutdown Mode The LM4880 is an audio power amplifier manufactured by National Semiconductor (NS). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Output Power:** 1.1W (typical) into 8Ω at 5V  
- **Total Harmonic Distortion + Noise (THD+N):** 0.2% (typical) at 1kHz, 1W into 8Ω  
- **Shutdown Current:** 0.6µA (typical)  
- **Quiescent Current:** 3mA (typical)  
- **Gain Bandwidth Product:** 3MHz (typical)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- The LM4880 is a bridge-connected audio power amplifier designed for portable applications.  
- It features a low-power consumption shutdown mode.  
- The device is optimized for driving speakers in battery-powered systems.  

### **Features:**  
- **Bridge-Tied Load (BTL) Configuration:** Eliminates the need for output coupling capacitors.  
- **Low Quiescent Current:** Extends battery life in portable devices.  
- **Shutdown Mode:** Reduces power consumption when not in use.  
- **Improved PSRR (Power Supply Rejection Ratio):** Minimizes noise from the power supply.  
- **Surface-Mount Package:** Available in an 8-pin SOIC package.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Dual 200 mW Audio Power Amplifier with Shutdown Mode

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