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LM4890MX from NSC,National Semiconductor

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LM4890MX

Manufacturer: NSC

1 Watt Audio Power Amplifier

Partnumber Manufacturer Quantity Availability
LM4890MX NSC 1500 In Stock

Description and Introduction

1 Watt Audio Power Amplifier The LM4890MX is a manufacturer by National Semiconductor (NSC).  

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W (into 8Ω at 5V)  
- **Supply Voltage Range:** 2.2V to 5.5V  
- **Quiescent Current:** 2.6mA (typical)  
- **Shutdown Current:** 0.01μA (typical)  
- **THD+N (Total Harmonic Distortion + Noise):** 0.2% (typical at 1kHz, 1W into 8Ω)  
- **PSRR (Power Supply Rejection Ratio):** 70dB (typical)  
- **Package:** SOIC-8  

### **Descriptions:**  
The LM4890MX is a mono, bridged audio power amplifier designed for applications such as mobile phones and portable devices. It operates from a single supply and features a shutdown mode for power-saving.  

### **Features:**  
- **Bridged Output:** Eliminates the need for external coupling capacitors.  
- **Low Quiescent Current:** Enhances battery life.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Improved PSRR:** Reduces noise from power supply variations.  
- **Minimal External Components:** Simplifies circuit design.  

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

Application Scenarios & Design Considerations

1 Watt Audio Power Amplifier

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