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LM4877IBPX from NS,National Semiconductor

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LM4877IBPX

Manufacturer: NS

1 Watt Audio Power Amplifier in micro SMD package with Shutdown Logic Low

Partnumber Manufacturer Quantity Availability
LM4877IBPX NS 40000 In Stock

Description and Introduction

1 Watt Audio Power Amplifier in micro SMD package with Shutdown Logic Low The LM4877IBPX is a mono bridged audio power amplifier manufactured by National Semiconductor (NS).  

### **Key Specifications:**  
- **Output Power:** 2.8W (into 4Ω at 5V, THD+N = 10%)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 0.3% (typical at 1W, 4Ω, 5V)  
- **Shutdown Current:** 0.01μA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 20-pin LLP (Leadless Leadframe Package)  

### **Descriptions and Features:**  
- Designed for portable audio applications such as mobile phones, PDAs, and portable media players.  
- Features a **Bridged-Tied Load (BTL)** configuration for higher output power without requiring an output coupling capacitor.  
- Includes **thermal shutdown protection** to prevent damage from overheating.  
- **Low power consumption** with a shutdown mode for power-saving operation.  
- **Improved pop-and-click suppression** for reduced noise during power-up/down.  
- **No external bootstrap capacitors** required, simplifying design.  
- **Surface-mount package (LLP)** for compact PCB layouts.  

This amplifier is optimized for driving small speakers efficiently in battery-powered devices.

Application Scenarios & Design Considerations

1 Watt Audio Power Amplifier in micro SMD package with Shutdown Logic Low

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