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LM2575SX-3.3 from 国半

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LM2575SX-3.3

Manufacturer: 国半

SIMPLE SWITCHER 1A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2575SX-3.3,LM2575SX33 国半 1000 In Stock

Description and Introduction

SIMPLE SWITCHER 1A Step-Down Voltage Regulator The LM2575SX-3.3 is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (国半).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4.75V to 40V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 52 kHz (fixed)  
- **Efficiency:** Up to 88%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-263-5 (D2PAK)  

### **Descriptions:**  
The LM2575SX-3.3 is a monolithic integrated circuit that provides all active functions for a step-down switching regulator. It is designed to drive a 1A load with excellent line and load regulation. The device requires minimal external components, simplifying power supply design.  

### **Features:**  
- **Fixed 3.3V Output**  
- **Wide Input Voltage Range** (4.75V to 40V)  
- **1A Output Current Capability**  
- **Internal Frequency Compensation**  
- **Thermal Shutdown and Current Limit Protection**  
- **Low Power Standby Mode** (when disabled)  
- **Simple and Easy-to-Use Design**  
- **Requires Only 4 External Components**  

This regulator is commonly used in power supply applications for industrial, automotive, and consumer electronics.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 1A Step-Down Voltage Regulator

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