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LM4859SP/NOPB from NSC,National Semiconductor

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LM4859SP/NOPB

Manufacturer: NSC

Stereo 1.2W Audio Sub-system with 3D Enhancement 28-UQFN -40 to 85

Partnumber Manufacturer Quantity Availability
LM4859SP/NOPB,LM4859SPNOPB NSC 540 In Stock

Description and Introduction

Stereo 1.2W Audio Sub-system with 3D Enhancement 28-UQFN -40 to 85 The LM4859SP/NOPB is a stereo audio power amplifier manufactured by National Semiconductor (NSC). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Output Power:**  
  - 1.1W per channel into 8Ω at 5V (THD+N = 10%)  
  - 325mW per channel into 8Ω at 3.3V (THD+N = 10%)  
- **THD+N (Total Harmonic Distortion + Noise):** 0.2% (typical at 1kHz, 1W into 8Ω)  
- **Shutdown Current:** <1μA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 24-pin LLP (Leadless Leadframe Package)  

### **Descriptions:**
- The LM4859SP/NOPB is a high-efficiency, stereo Class D audio amplifier designed for portable applications.  
- It features an integrated boost converter to enhance output power while maintaining low power consumption.  
- The device includes click-and-pop suppression circuitry to minimize audible noise during power-up/down.  

### **Features:**
- **Stereo Class D Operation** for improved efficiency.  
- **Integrated Boost Converter** for increased output power.  
- **Low Quiescent Current:** 10mA (typical)  
- **Thermal and Short-Circuit Protection**  
- **Click-and-Pop Suppression**  
- **Space-Saving 24-Pin LLP Package**  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Stereo 1.2W Audio Sub-system with 3D Enhancement 28-UQFN -40 to 85

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