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LM2577T-12

SIMPLE SWITCHER Step-Up Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2577T-12,LM2577T12 28 In Stock

Description and Introduction

SIMPLE SWITCHER Step-Up Voltage Regulator The LM2577T-12 is a step-up (boost), flyback, and forward converter switching regulator manufactured by Texas Instruments. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Output Voltage:** Fixed +12V  
- **Output Current:** Up to 3A (depending on input voltage and circuit configuration)  
- **Input Voltage Range:** 3.5V to 40V  
- **Switching Frequency:** 52 kHz  
- **Efficiency:** Up to 80%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** TO-220-5 (Through-Hole)  

### **Descriptions:**  
- The LM2577T-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 internal feedback compensation.  
- The device requires minimal external components, simplifying design.  

### **Features:**  
- **Fixed Output Voltage:** +12V (±4% tolerance)  
- **Wide Input Voltage Range:** 3.5V to 40V  
- **High Current Switch:** Supports up to 3A load current  
- **Internal Frequency Compensation:** Reduces external component count  
- **Thermal Shutdown & Current Limiting:** Protects against overloads  
- **Low Standby Current:** Typically 5mA in shutdown mode  
- **Simple Design:** Requires only 4 external components for basic operation  

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

Application Scenarios & Design Considerations

SIMPLE SWITCHER Step-Up Voltage Regulator

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