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LM2575HVT-3.3 from NS,National Semiconductor

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LM2575HVT-3.3

Manufacturer: NS

SIMPLE SWITCHER 1A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2575HVT-3.3,LM2575HVT33 NS 1 In Stock

Description and Introduction

SIMPLE SWITCHER 1A Step-Down Voltage Regulator The LM2575HVT-3.3 is a step-down (buck) switching regulator manufactured by ON Semiconductor (NS). Below are its specifications, descriptions, and features:

### **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 Junction Temperature:** -40°C to +125°C  
- **Package Type:** TO-220-5 (Through-Hole)  
- **Regulation Type:** PWM (Pulse Width Modulation)  

### **Descriptions:**
- The LM2575HVT-3.3 is a monolithic integrated circuit designed for step-down voltage regulation.  
- It simplifies power supply design with minimal external components.  
- Includes fixed-frequency oscillator, thermal shutdown, and current limit protection.  

### **Features:**
- **Fixed 3.3V Output Voltage**  
- **Wide Input Voltage Range (4.75V to 40V)**  
- **1A Output Current Capability**  
- **Internal Frequency Compensation**  
- **Thermal Shutdown & Current Limit Protection**  
- **Low Power Standby Mode (50μA typical)**  
- **Requires Only 4 External Components**  
- **Available in TO-220 Package**  

This regulator is commonly used in power supply applications requiring efficient step-down conversion.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 1A Step-Down Voltage Regulator

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