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LM2575SX-ADJ/NOPB from NSC,National Semiconductor

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LM2575SX-ADJ/NOPB

Manufacturer: NSC

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

Partnumber Manufacturer Quantity Availability
LM2575SX-ADJ/NOPB,LM2575SXADJNOPB NSC 500 In Stock

Description and Introduction

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

### **Specifications:**
- **Input Voltage Range:** 4V to 40V  
- **Output Voltage Range:** Adjustable from 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:** TO-263-5 (D2PAK)  
- **Regulation Type:** Buck (Step-Down) Converter  

### **Descriptions:**
The LM2575SX-ADJ/NOPB 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.  
- **Wide Input Voltage Range** – Supports 4V to 40V input.  
- **High Efficiency** – Reduces power dissipation.  
- **Internal Frequency Compensation** – Simplifies circuit design.  
- **Thermal Shutdown and Current Limit Protection** – Enhances reliability.  
- **Low Power Standby Mode** – Typically 50µA when disabled.  
- **Available in Adjustable and Fixed Output Versions** – Offers flexibility in design.  

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

Application Scenarios & Design Considerations

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

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