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LM4900MX from NS,National Semiconductor

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LM4900MX

Manufacturer: NS

265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode

Partnumber Manufacturer Quantity Availability
LM4900MX NS 23110 In Stock

Description and Introduction

265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode The LM4900MX is a power amplifier manufactured by National Semiconductor (NS).  

### **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)  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical at 1kHz, 1W into 8Ω)  
- **Package:** 8-Pin SOIC (Small Outline Integrated Circuit)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions and Features:**  
- Designed for low-voltage applications such as portable electronics.  
- Features a shutdown mode to reduce power consumption.  
- Requires minimal external components for operation.  
- Includes thermal shutdown protection.  
- Suitable for driving small speakers in mobile phones, PDAs, and other battery-powered devices.  
- Bridge-tied load (BTL) configuration for improved efficiency.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode

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