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LM2577MX-12 from NS,National Semiconductor

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LM2577MX-12

Manufacturer: NS

SIMPLE SWITCHER Step-Up Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2577MX-12,LM2577MX12 NS 552 In Stock

Description and Introduction

SIMPLE SWITCHER Step-Up Voltage Regulator The LM2577MX-12 is a step-up (boost) switching regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 12V (fixed)  
- **Input Voltage Range:** 3.5V to 40V  
- **Output Current:** Up to 3A (with proper heat sinking)  
- **Switching Frequency:** 52 kHz (typical)  
- **Efficiency:** Up to 80%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-16 (Surface Mount)  
- **Regulator Type:** Buck-Boost, Flyback, or Forward Converter  

### **Descriptions:**  
- The LM2577MX-12 is a monolithic integrated circuit designed for step-up (boost), flyback, and forward converter applications.  
- It includes a fixed-frequency oscillator, a high-current switch, and voltage feedback control.  
- Requires minimal external components for operation.  

### **Features:**  
- **Fixed 12V Output**  
- **Wide Input Voltage Range** (3.5V to 40V)  
- **High-Efficiency Switching**  
- **Internal Current Limiting & Thermal Shutdown**  
- **Low Standby Current** (50 µA typical in shutdown mode)  
- **Simple External Components** (inductor, diode, capacitors)  
- **Suitable for Battery-Powered Applications**  

This information is based on the manufacturer’s datasheet. For detailed electrical characteristics and application circuits, refer to the official documentation.

Application Scenarios & Design Considerations

SIMPLE SWITCHER Step-Up Voltage Regulator

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