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LM2575SX-5.0 NOPB from NSC,National Semiconductor

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LM2575SX-5.0 NOPB

Manufacturer: NSC

SIMPLE SWITCHER 1A Step-Down Voltage Regulator 5-DDPAK/TO-263 -40 to 125

Partnumber Manufacturer Quantity Availability
LM2575SX-5.0 NOPB,LM2575SX50NOPB NSC 2000 In Stock

Description and Introduction

SIMPLE SWITCHER 1A Step-Down Voltage Regulator 5-DDPAK/TO-263 -40 to 125 The LM2575SX-5.0/NOPB is a step-down (buck) switching regulator manufactured by National Semiconductor (NSC). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** Fixed 5.0V  
- **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:** TO-263-5 (D2PAK)  
- **Regulation Type:** PWM (Pulse Width Modulation)  
- **Dropout Voltage:** Typically 1.5V at full load  

### **Descriptions:**
The LM2575SX-5.0/NOPB is a monolithic integrated circuit designed for step-down voltage regulation. It simplifies power supply design by requiring minimal external components and includes features like thermal shutdown and current limiting for robust operation.  

### **Features:**
- **Fixed 5.0V Output** (also available in adjustable versions)  
- **Wide Input Voltage Range** (4.75V to 40V)  
- **1A Load Current Capability**  
- **Internal Frequency Compensation**  
- **Thermal Shutdown & Current Limit Protection**  
- **Low Power Standby Mode** (when disabled)  
- **Requires Only 4 External Components**  
- **Stable with Low-ESR Capacitors**  

This regulator is commonly used in industrial, automotive, and consumer applications where efficient step-down voltage conversion is needed.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 1A Step-Down Voltage Regulator 5-DDPAK/TO-263 -40 to 125

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