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LM2576HVT-3.3 from NS,National Semiconductor

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LM2576HVT-3.3

Manufacturer: NS

SIMPLE SWITCHER® 3A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2576HVT-3.3,LM2576HVT33 NS 24 In Stock

Description and Introduction

SIMPLE SWITCHER® 3A Step-Down Voltage Regulator The LM2576HVT-3.3 is a step-down switching regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4.75V to 60V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 52 kHz  
- **Efficiency:** Up to 88%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220-5 (Through-Hole)  
- **Regulation Type:** Buck (Step-Down) Converter  

### **Descriptions:**  
The LM2576HVT-3.3 is a monolithic integrated circuit designed for step-down (buck) voltage regulation. It simplifies power supply design by requiring minimal external components and includes features like thermal shutdown and current limiting for protection.  

### **Features:**  
- **Fixed 3.3V Output**  
- **Wide Input Voltage Range (4.75V to 60V)**  
- **3A Output Current Capability**  
- **Internal Frequency Compensation**  
- **Thermal Shutdown & Current Limit Protection**  
- **Low Power Standby Mode (50μA typical)**  
- **TTL Shutdown Capability**  
- **Requires Only 4 External Components**  

This regulator is commonly used in industrial, automotive, and consumer applications where efficient step-down voltage conversion is needed.

Application Scenarios & Design Considerations

SIMPLE SWITCHER® 3A Step-Down Voltage Regulator
Partnumber Manufacturer Quantity Availability
LM2576HVT-3.3,LM2576HVT33 NSC 79 In Stock

Description and Introduction

SIMPLE SWITCHER® 3A Step-Down Voltage Regulator The LM2576HVT-3.3 is a step-down (buck) switching regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4V to 40V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 52 kHz  
- **Efficiency:** Up to 88%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220-5 (Through-Hole)  
- **Regulation Type:** PWM (Pulse-Width Modulation)  
- **Protection Features:** Thermal shutdown and current limit  

### **Descriptions:**  
The LM2576HVT-3.3 is a monolithic integrated circuit that provides all active functions for a step-down switching regulator. It is designed for easy implementation in power supply applications requiring high efficiency and a fixed 3.3V output.  

### **Features:**  
- Simple and easy-to-use design  
- Requires minimal external components  
- Internal frequency compensation  
- Low power standby mode  
- Adjustable soft-start capability (with external components)  
- High efficiency compared to linear regulators  
- Wide input voltage range  

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

Application Scenarios & Design Considerations

SIMPLE SWITCHER® 3A Step-Down Voltage Regulator

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