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LM4855LQX from NSC,National Semiconductor

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LM4855LQX

Manufacturer: NSC

Integrated Audio Amplifier System

Partnumber Manufacturer Quantity Availability
LM4855LQX NSC 11132 In Stock

Description and Introduction

Integrated Audio Amplifier System The LM4855LQX is a manufacturer by National Semiconductor (NSC). Here are its key specifications, descriptions, and features:

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 2.8W (into 4Ω at 5V, THD+N = 10%)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 24-pin LLP (Leadless Leadframe Package)  
- **Efficiency:** Up to 90% (Class D operation)  
- **Signal-to-Noise Ratio (SNR):** >90dB  
- **Total Harmonic Distortion + Noise (THD+N):** <1% (typical)  

### **Descriptions:**  
The LM4855LQX is a high-efficiency, mono Class D audio amplifier designed for portable applications. It features an integrated boost converter to enhance output power while maintaining low power consumption.  

### **Features:**  
- **Class D Operation:** High efficiency with minimal heat dissipation.  
- **Integrated Boost Converter:** Allows higher output power from low supply voltages.  
- **Low Quiescent Current:** Extends battery life in portable devices.  
- **Shutdown Mode:** Reduces power consumption when inactive.  
- **Pop-and-Click Suppression:** Minimizes audible noise during power-up/down.  
- **Short-Circuit & Thermal Protection:** Enhances reliability.  

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

Application Scenarios & Design Considerations

Integrated Audio Amplifier System

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