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LM2575HVT-12/NOPB from NS,National Semiconductor

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LM2575HVT-12/NOPB

Manufacturer: NS

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

Partnumber Manufacturer Quantity Availability
LM2575HVT-12/NOPB,LM2575HVT12NOPB NS 1125 In Stock

Description and Introduction

SIMPLE SWITCHER 1A Step-Down Voltage Regulator 5-TO-220 -40 to 125 The LM2575HVT-12/NOPB is a step-down (buck) switching voltage regulator manufactured by Texas Instruments (formerly National Semiconductor, NS).  

### **Specifications:**  
- **Output Voltage:** Fixed 12V  
- **Input Voltage Range:** 4.75V to 40V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 52 kHz (typical)  
- **Efficiency:** Up to 80% (depending on conditions)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220-5 (Through-Hole)  
- **Regulation Type:** PWM (Pulse Width Modulation)  
- **Protection Features:** Thermal shutdown, current limiting  

### **Descriptions:**  
The LM2575HVT-12/NOPB is a monolithic integrated circuit designed for step-down voltage regulation. It simplifies power supply design by requiring minimal external components. The fixed 12V output version eliminates the need for external resistors to set the output voltage.  

### **Features:**  
- Simple and easy-to-use buck regulator  
- Requires only 4 external components (inductor, diode, capacitor, and input capacitor)  
- Internal frequency compensation  
- Low standby current (50 µA typical in shutdown mode)  
- High efficiency compared to linear regulators  
- Wide input voltage range  
- Thermal shutdown and current limit protection  

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

Application Scenarios & Design Considerations

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

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