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LM4919MMX from NS,National Semiconductor

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15.625ms

LM4919MMX

Manufacturer: NS

1.5V, Mono 85mW BTL Output, 14mW Stereo Headphone Audio Amplifier

Partnumber Manufacturer Quantity Availability
LM4919MMX NS 4902 In Stock

Description and Introduction

1.5V, Mono 85mW BTL Output, 14mW Stereo Headphone Audio Amplifier The LM4919MMX is a manufacturer by National Semiconductor (NS). Here are its specifications, descriptions, and features:  

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Type:** Stereo (2 channels)  
- **Output Power:**  
  - 80mW per channel into 32Ω at 3.3V  
  - 105mW per channel into 16Ω at 5V  
- **Supply Voltage Range:** 2.2V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 0.1% (typical)  
- **Shutdown Current:** 0.01μA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-Pin uSMD (Micro Small Outline Package)  

### **Descriptions:**  
The LM4919MMX is a stereo audio power amplifier designed for portable electronic devices such as smartphones, MP3 players, and tablets. It features a low-voltage operation, making it suitable for battery-powered applications. The device includes an internal depop circuitry to minimize audible pops during power-up and shutdown.  

### **Features:**  
- **Low Voltage Operation (2.2V to 5.5V)**  
- **Stereo Differential Inputs**  
- **Thermal Shutdown Protection**  
- **Click-and-Pop Suppression Circuitry**  
- **High PSRR (Power Supply Rejection Ratio):** 70dB at 217Hz  
- **Space-Saving 10-Pin uSMD Package**  
- **Low Shutdown Current (0.01μA typical)**  
- **No External Output Coupling Capacitors Required**  

This information is based on the manufacturer's datasheet for the LM4919MMX.

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