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LM4819MX from NSC,National Semiconductor

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LM4819MX

Manufacturer: NSC

350mW Audio Power Amplifier with Shutdown Mode

Partnumber Manufacturer Quantity Availability
LM4819MX NSC 422 In Stock

Description and Introduction

350mW Audio Power Amplifier with Shutdown Mode The LM4819MX is a dual bridge-connected audio power amplifier manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Type:** Dual Bridge Audio Power Amplifier  
- **Output Power:** 1.1W per channel into 8Ω at 5V  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical) at 1kHz, 1W into 8Ω  
- **Shutdown Current:** 0.6μA (typical)  
- **Quiescent Current:** 4mA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin SOIC (LM4819MX)  

### **Descriptions and Features:**  
- Designed for portable audio applications such as mobile phones, PDAs, and portable media players.  
- Features two bridge-tied load (BTL) amplifiers for driving stereo speakers.  
- Includes an internal thermal shutdown protection circuit.  
- Low shutdown current extends battery life.  
- No external output coupling capacitors required.  
- Unity-gain stable, eliminating the need for external gain-setting resistors.  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

350mW Audio Power Amplifier with Shutdown Mode

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