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LA4557

2-Channel AF Power Amp for Radio, Tape Recorder Use

Partnumber Manufacturer Quantity Availability
LA4557 200 In Stock

Description and Introduction

2-Channel AF Power Amp for Radio, Tape Recorder Use The LA4557 is a dual-channel audio power amplifier IC manufactured by Sanyo. Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Supply Voltage (VCC):** 6V (max 9V)  
- **Output Power:** 2.3W per channel (at 6V, 4Ω, THD=10%)  
- **Total Harmonic Distortion (THD):** 0.3% (typical at 1W output)  
- **Operating Temperature Range:** -20°C to +75°C  
- **Package Type:** SIP (Single In-line Package)  
- **Pin Count:** 12 pins  

### **Descriptions:**  
- The LA4557 is designed for stereo audio amplification in portable devices like radios, cassette players, and other consumer electronics.  
- It includes built-in thermal shutdown and overvoltage protection.  
- The IC operates in a single power supply configuration.  

### **Features:**  
- Dual-channel (stereo) amplifier  
- Low quiescent current  
- Built-in audio muting function  
- Good ripple rejection  
- Minimal external components required  

This information is based on the manufacturer's datasheet for the LA4557.

Partnumber Manufacturer Quantity Availability
LA4557 SANYO 300 In Stock

Description and Introduction

2-Channel AF Power Amp for Radio, Tape Recorder Use The LA4557 is an integrated circuit (IC) manufactured by SANYO. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** SANYO  
- **Type:** Audio Power Amplifier IC  
- **Package:** SIP (Single In-line Package)  
- **Power Supply Voltage (VCC):** 6V (typical)  
- **Output Power:** 2.3W (at 6V, 4Ω, THD=10%)  
- **Operating Voltage Range:** 4V to 9V  
- **Quiescent Current:** 15mA (typical)  
- **Total Harmonic Distortion (THD):** 0.3% (typical at 1W, 4Ω)  
- **Frequency Response:** 20Hz to 20kHz  
- **Load Impedance:** 4Ω (recommended)  

### **Descriptions:**
- The LA4557 is a monolithic IC designed for audio power amplification in portable devices.  
- It features built-in thermal shutdown and overvoltage protection.  
- Suitable for applications such as radios, cassette players, and other small audio systems.  

### **Features:**
- Low quiescent current consumption  
- Built-in audio muting function  
- Minimal external components required  
- Good ripple rejection  
- Compact SIP package for space-saving designs  

This information is based solely on the available technical data for the LA4557 by SANYO.

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