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LM4819LDX from NSC,National Semiconductor

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LM4819LDX

Manufacturer: NSC

350mW Audio Power Amplifier with Shutdown Mode

Partnumber Manufacturer Quantity Availability
LM4819LDX NSC 2504 In Stock

Description and Introduction

350mW Audio Power Amplifier with Shutdown Mode The LM4819LDX is a dual bridge audio power amplifier manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Power:** 1.1W per channel into 8Ω at 5V (THD+N = 10%)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Quiescent Current:** 3.6mA (typical)  
- **Shutdown Current:** 0.6μA (typical)  
- **Total Harmonic Distortion + Noise (THD+N):** 1% (typical at 1kHz, 1W into 8Ω)  
- **Gain:** Internally fixed at 6dB  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin LLP (Leadless Leadframe Package)  

### **Descriptions and Features:**  
- Dual bridge configuration for stereo or mono BTL (Bridge-Tied Load) operation  
- No output coupling capacitors required  
- Low shutdown current for power-saving applications  
- Improved pop-and-click suppression circuitry  
- Thermal shutdown protection  
- Short-circuit protection  
- Space-saving LLP package  

The LM4819LDX is designed for portable audio applications such as mobile phones, PDAs, and portable media players.

Application Scenarios & Design Considerations

350mW Audio Power Amplifier with Shutdown Mode

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