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LM2575T-3.3 from SC

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LM2575T-3.3

Manufacturer: SC

3.3V dual 1.0A step down switching voltage regulator

Partnumber Manufacturer Quantity Availability
LM2575T-3.3,LM2575T33 SC 35 In Stock

Description and Introduction

3.3V dual 1.0A step down switching voltage regulator The LM2575T-3.3 is a step-down (buck) switching voltage regulator manufactured by ON Semiconductor (formerly part of SC, Semiconductor Components Industries, LLC).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4.75V to 40V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 52 kHz (typical)  
- **Efficiency:** Up to 88%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220-5 (through-hole)  
- **Regulation Type:** PWM (Pulse Width Modulation)  
- **Protection Features:** Thermal shutdown and current limit  

### **Descriptions:**  
The LM2575T-3.3 is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator. It is designed for easy implementation and requires minimal external components.  

### **Features:**  
- Simple and easy-to-use design  
- Requires only 4 external components  
- Wide input voltage range  
- Low power standby mode (IQ ≈ 50 μA)  
- Internal frequency compensation  
- Fixed and adjustable output voltage versions available  
- High efficiency compared to linear regulators  
- Thermal shutdown and current limit protection  

This regulator is commonly used in power supply applications where a stable 3.3V output is required from a higher input voltage source.

Application Scenarios & Design Considerations

3.3V dual 1.0A step down switching voltage regulator

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