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LM2577S-12

SIMPLE SWITCHER Step-Up Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2577S-12,LM2577S12 67 In Stock

Description and Introduction

SIMPLE SWITCHER Step-Up Voltage Regulator The LM2577S-12 is a step-up (boost), flyback, and forward converter switching regulator manufactured by Texas Instruments.  

### **Specifications:**  
- **Output Voltage:** Fixed 12V  
- **Input Voltage Range:** 3.5V to 40V  
- **Output Current:** Up to 3A (depending on input voltage and circuit configuration)  
- **Switching Frequency:** 52 kHz (typical)  
- **Efficiency:** Up to 80%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263-5 (D2PAK)  

### **Descriptions:**  
The LM2577S-12 is a monolithic integrated circuit optimized for step-up (boost), flyback, and forward converter applications. It simplifies power supply design by integrating a high-current switch, oscillator, and control circuitry.  

### **Features:**  
- Fixed 12V output (±4% tolerance)  
- Requires minimal external components  
- Internal current limiting and thermal shutdown protection  
- Low standby current (50 µA typical in shutdown mode)  
- Adjustable version available (LM2577-ADJ)  
- Suitable for battery-powered applications  

For detailed application circuits and performance graphs, refer to the official Texas Instruments datasheet.

Application Scenarios & Design Considerations

SIMPLE SWITCHER Step-Up Voltage Regulator

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