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LM2576S-5.0/NOPB from NS,National Semiconductor

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LM2576S-5.0/NOPB

Manufacturer: NS

SIMPLE SWITCHER? 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125

Partnumber Manufacturer Quantity Availability
LM2576S-5.0/NOPB,LM2576S50NOPB NS 35 In Stock

Description and Introduction

SIMPLE SWITCHER? 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125 The LM2576S-5.0/NOPB is a step-down (buck) switching regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 5.0V (fixed)  
- **Input Voltage Range:** 4.75V to 40V  
- **Output Current:** 3A  
- **Switching Frequency:** 52 kHz  
- **Efficiency:** Up to 88%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-263-5 (D2PAK)  
- **Regulation Type:** Buck (Step-Down)  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions:**  
The LM2576S-5.0/NOPB is a monolithic switching regulator that simplifies power supply design. It requires minimal external components and provides a fixed 5.0V output. It is designed for high-efficiency step-down voltage regulation in applications such as power supplies, battery chargers, and industrial systems.  

### **Features:**  
- **Simple and Easy to Use** – Requires few external components.  
- **High Efficiency** – Reduces heat dissipation.  
- **Wide Input Voltage Range** – Supports 4.75V to 40V input.  
- **Fixed Output Voltage** – 5.0V with ±4% tolerance.  
- **Thermal Shutdown and Current Limit Protection** – Enhances reliability.  
- **Low Power Standby Mode** – Consumes minimal current when disabled.  

This regulator is suitable for applications requiring stable 5V power from higher input voltages.

Application Scenarios & Design Considerations

SIMPLE SWITCHER? 40V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125

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