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LM4869 from NS,National Semiconductor

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LM4869

Manufacturer: NS

1.9W Differential Input, BTL Output Stereo Audio Amplifier with Selectable Gain and Shutdown

Partnumber Manufacturer Quantity Availability
LM4869 NS 10 In Stock

Description and Introduction

1.9W Differential Input, BTL Output Stereo Audio Amplifier with Selectable Gain and Shutdown The LM4869 is a manufacturer by National Semiconductor (NS). It is a 1.1W audio power amplifier designed for applications such as portable devices, multimedia monitors, and notebooks.  

### **Specifications:**  
- **Output Power:** 1.1W into 8Ω at 5V  
- **Supply Voltage Range:** 2.0V to 5.5V  
- **Quiescent Current:** 2.6mA (typical)  
- **Shutdown Current:** 0.1μA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 0.3% (typical) at 1kHz, 1W into 8Ω  
- **Gain Bandwidth Product:** 1MHz  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- Single-supply operation  
- No output coupling capacitors required  
- Internal thermal shutdown protection  
- Unity-gain stable  

### **Features:**  
- **Low Power Consumption:** Ideal for battery-powered applications  
- **Space-Saving:** Available in 8-pin MSOP and SOIC packages  
- **Improved PSRR (Power Supply Rejection Ratio):** Reduces noise from power supply variations  
- **Click-and-Pop Suppression:** Minimizes audible noise during power-up/down  
- **Short-Circuit Protection:** Enhances device reliability  

The LM4869 is optimized for efficiency and performance in compact audio applications.

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