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LM2596S-3.3 from NSC,National Semiconductor

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LM2596S-3.3

Manufacturer: NSC

SIMPLE SWITCHER Power Converter 150 KHz 3A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2596S-3.3,LM2596S33 NSC 91 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter 150 KHz 3A Step-Down Voltage Regulator The LM2596S-3.3 is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 150 kHz  
- **Efficiency:** Up to 88%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-263-5 (D2PAK)  

### **Descriptions:**
- The LM2596S-3.3 is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator.  
- It is designed for simple and efficient voltage regulation, requiring minimal external components.  
- The device includes a fixed-frequency oscillator, internal compensation, and a high-current switch.  

### **Features:**
- **Fixed 3.3V Output** with ±4% accuracy  
- **Wide Input Voltage Range** (4.5V to 40V)  
- **3A Output Current Capability**  
- **150 kHz Fixed Switching Frequency**  
- **Thermal Shutdown and Current Limit Protection**  
- **Low Power Standby Mode** (IQ ≈ 80 µA)  
- **Requires Only 4 External Components** for operation  
- **Available in a TO-263-5 Package**  

This regulator is commonly used in power supply applications where efficient step-down conversion is required.

Application Scenarios & Design Considerations

SIMPLE SWITCHER Power Converter 150 KHz 3A Step-Down Voltage Regulator

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