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LM2575T-ADJ LB03 from NSC,National Semiconductor

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LM2575T-ADJ LB03

Manufacturer: NSC

SIMPLE SWITCHER 1A Step-Down Voltage Regulator 5-TO-220

Partnumber Manufacturer Quantity Availability
LM2575T-ADJ LB03,LM2575TADJLB03 NSC 7639 In Stock

Description and Introduction

SIMPLE SWITCHER 1A Step-Down Voltage Regulator 5-TO-220 The LM2575T-ADJ LB03 is a switching voltage regulator manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 4.75V to 40V  
- **Output Voltage Range:** Adjustable (1.23V to 37V)  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 52 kHz (fixed)  
- **Efficiency:** Up to 88%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** TO-220-5 (through-hole)  
- **Regulation Type:** Buck (step-down) converter  

### **Descriptions:**
The LM2575T-ADJ is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator. It is designed for easy implementation and requires minimal external components. The adjustable version allows users to set the output voltage with an external resistor divider.

### **Features:**
- **Simple and Easy to Use:** Requires only 4 external components.  
- **High Efficiency:** Reduces power dissipation compared to linear regulators.  
- **Internal Frequency Compensation:** Simplifies circuit design.  
- **Thermal Shutdown and Current Limit Protection:** Enhances reliability.  
- **Low Power Standby Mode:** Consumes minimal current when disabled.  
- **Wide Input Voltage Range:** Suitable for various applications.  

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

Application Scenarios & Design Considerations

SIMPLE SWITCHER 1A Step-Down Voltage Regulator 5-TO-220

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