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LM2575T-5.0/NOPB from NSC,National Semiconductor

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LM2575T-5.0/NOPB

Manufacturer: NSC

SIMPLE SWITCHER 1A Step-Down Voltage Regulator 5-TO-220 -40 to 125

Partnumber Manufacturer Quantity Availability
LM2575T-5.0/NOPB,LM2575T50NOPB NSC 606 In Stock

Description and Introduction

SIMPLE SWITCHER 1A Step-Down Voltage Regulator 5-TO-220 -40 to 125 The LM2575T-5.0/NOPB is a step-down (buck) switching regulator manufactured by National Semiconductor (NSC). Here 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 (fixed)  
- **Efficiency:** Up to 80% (depending on conditions)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220-5 (Through-hole)  

### **Descriptions:**
- The LM2575T-5.0/NOPB is a monolithic integrated circuit that provides all active functions for a step-down switching regulator.  
- It requires minimal external components and includes a fixed-frequency oscillator, internal current limiting, thermal shutdown, and an on/off control.  
- Designed for ease of use in power supply applications, it is suitable for battery chargers, industrial power systems, and automotive applications.  

### **Features:**
- **Fixed 5.0V Output** (other variants available for adjustable output)  
- **Low Power Standby Mode** (quiescent current typically 50µA when shut down)  
- **Internal Thermal Shutdown & Current Limiting** for protection  
- **Wide Input Voltage Range** (4.75V to 40V)  
- **Requires Only 4 External Components** for basic operation  
- **High Efficiency** compared to linear regulators  
- **Lead (Pb)-Free & RoHS Compliant**  

This regulator is commonly used in applications requiring efficient power conversion with minimal external components.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 1A Step-Down Voltage Regulator 5-TO-220 -40 to 125

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