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LM2594N-3.3 from NS,National Semiconductor

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LM2594N-3.3

Manufacturer: NS

SIMPLE SWITCHER Power Converter 150 KHz 0.5A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2594N-3.3,LM2594N33 NS 46 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter 150 KHz 0.5A Step-Down Voltage Regulator The LM2594N-3.3 is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Current:** Up to 0.5A  
- **Switching Frequency:** 150 kHz (fixed)  
- **Efficiency:** Up to 80%  
- **Operating Junction Temperature Range:** -40°C to +125°C  
- **Package:** 8-Pin DIP (Dual Inline Package)  

### **Descriptions:**
- The LM2594N-3.3 is a monolithic integrated circuit that provides all active functions for a step-down switching regulator.  
- It is designed to drive a 0.5A load with excellent line and load regulation.  
- The device includes a fixed-frequency oscillator, feedback control, and an internal switch.  
- Requires minimal external components, simplifying design and reducing board space.  

### **Features:**
- **Fixed 3.3V Output** (other variants available for adjustable output)  
- **Low Power Standby Mode** (IQ typically 80µA)  
- **Internal Current Limiting & Thermal Shutdown** for protection  
- **Wide Input Voltage Range** (4.5V to 40V)  
- **High Efficiency** (up to 80%)  
- **Simple & Easy to Use** with minimal external components  
- **Stable with Low-ESR Output Capacitors** (such as ceramic or tantalum)  

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

Application Scenarios & Design Considerations

SIMPLE SWITCHER Power Converter 150 KHz 0.5A Step-Down Voltage Regulator

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