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LM4667MMX from NS,National Semiconductor

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LM4667MMX

Manufacturer: NS

Filterless High Efficiency 1.3W Switching Audio Amplifier

Partnumber Manufacturer Quantity Availability
LM4667MMX NS 15588 In Stock

Description and Introduction

Filterless High Efficiency 1.3W Switching Audio Amplifier The LM4667MMX is a stereo audio power amplifier manufactured by Texas Instruments (NS).  

**Specifications:**  
- **Output Power:** 2.1W per channel into 4Ω at 5V  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 0.1% (typical)  
- **Efficiency:** Up to 90% (Class D operation)  
- **Shutdown Current:** <1μA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin VSSOP (MMX)  

**Descriptions:**  
- The LM4667MMX is a Class D stereo audio amplifier designed for portable applications.  
- It features a low-power shutdown mode and thermal shutdown protection.  
- Includes click-and-pop suppression circuitry.  

**Features:**  
- Stereo Class D operation  
- No output filter required  
- Low supply current (4mA typical)  
- Short-circuit and thermal protection  
- Improved PSRR (Power Supply Rejection Ratio)  
- Space-saving VSSOP package  

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

Application Scenarios & Design Considerations

Filterless High Efficiency 1.3W Switching Audio Amplifier
Partnumber Manufacturer Quantity Availability
LM4667MMX NSC 15408 In Stock

Description and Introduction

Filterless High Efficiency 1.3W Switching Audio Amplifier The LM4667MMX is a stereo audio power amplifier manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Power:** 2.2W per channel into 4Ω at 5V  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 0.2% (typical) at 1W into 4Ω  
- **Efficiency:** Up to 90% (Class D operation)  
- **Shutdown Current:** <1µA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin VSSOP (MM)  

### **Descriptions:**  
- The LM4667MMX is a stereo Class D audio amplifier designed for portable applications.  
- It features a low-power shutdown mode and thermal shutdown protection.  
- Operates in bridge-tied load (BTL) mode for each channel.  

### **Features:**  
- **Filterless Class D Operation:** Eliminates the need for external LC filters.  
- **Low Quiescent Current:** 4mA (typical)  
- **Pop-and-Click Suppression:** Reduces noise during power-up/down.  
- **Short-Circuit and Thermal Protection:** Enhances reliability.  
- **Space-Saving Package:** 8-pin VSSOP (Mini Small Outline Package).  

This information is based on the manufacturer's datasheet. Let me know if you need further details.

Application Scenarios & Design Considerations

Filterless High Efficiency 1.3W Switching Audio Amplifier

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