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LM4861MX from NS,National Semiconductor

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LM4861MX

Manufacturer: NS

1.1W Audio Power Amplifier with Shutdown Mode

Partnumber Manufacturer Quantity Availability
LM4861MX NS 5044 In Stock

Description and Introduction

1.1W Audio Power Amplifier with Shutdown Mode The LM4861MX is a manufacturer by National Semiconductor (NS). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W (typical into 8Ω at 5V)  
- **Supply Voltage Range:** 2.0V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical at 1kHz, 1W into 8Ω)  
- **Quiescent Current:** 4mA (typical)  
- **Shutdown Current:** 0.6μA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The LM4861MX is a mono bridged audio power amplifier designed for low-voltage applications. It is optimized for driving speakers in portable devices such as mobile phones, PDAs, and other battery-powered audio systems. The device includes a shutdown mode to minimize power consumption when not in use.

### **Features:**  
- **Bridged Output:** Eliminates the need for output coupling capacitors.  
- **Low Quiescent Current:** Extends battery life in portable applications.  
- **Thermal Shutdown Protection:** Prevents damage due to overheating.  
- **Short-Circuit Protection:** Safeguards the amplifier under fault conditions.  
- **Improved PSRR (Power Supply Rejection Ratio):** Reduces noise from the power supply.  
- **Space-Saving Package:** SOIC-8 for compact PCB designs.  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

1.1W Audio Power Amplifier with Shutdown Mode

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