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LM2575SX-5.0 from 国半

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LM2575SX-5.0

Manufacturer: 国半

SIMPLE SWITCHER 1A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2575SX-5.0,LM2575SX50 国半 1000 In Stock

Description and Introduction

SIMPLE SWITCHER 1A Step-Down Voltage Regulator The LM2575SX-5.0 is a switching voltage regulator manufactured by National Semiconductor (国半). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Output Voltage:** 5.0V (fixed)  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 52 kHz (fixed)  
- **Efficiency:** Up to 88% (depending on conditions)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** TO-263 (D2PAK)  
- **Regulation Type:** Buck (Step-Down) Converter  

### **Descriptions:**
- The LM2575SX-5.0 is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator.  
- It is designed to drive a 1A load with excellent line and load regulation.  
- The device requires minimal external components, simplifying design and reducing board space.  
- It includes features such as thermal shutdown and current limiting for protection.  

### **Features:**
- **Fixed 5.0V Output** (also available in adjustable versions)  
- **Wide Input Voltage Range (4.5V to 40V)**  
- **Low Power Standby Mode (IQ ~50μA typical)**  
- **Internal Frequency Compensation**  
- **Thermal Shutdown and Current Limit Protection**  
- **Requires Only 4 External Components** (inductor, diode, input/output capacitors)  
- **Available in TO-263 (D2PAK) Package** for efficient heat dissipation  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 1A Step-Down Voltage Regulator

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