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LM2594M-ADJ from NSC,National Semiconductor

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LM2594M-ADJ

Manufacturer: NSC

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

Partnumber Manufacturer Quantity Availability
LM2594M-ADJ,LM2594MADJ NSC 373 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter 150 KHz 0.5A Step-Down Voltage Regulator The LM2594M-ADJ is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (NSC). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 40V  
- **Adjustable Output Voltage Range:** 1.23V to 37V (set via external resistors)  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 150 kHz (fixed)  
- **Efficiency:** Up to 80%  
- **Operating Junction Temperature Range:** -40°C to +125°C  
- **Package Type:** SOIC-8 (Surface Mount)  

### **Descriptions:**
- The LM2594M-ADJ is a monolithic integrated circuit that provides all active functions for a step-down switching regulator.  
- It includes a fixed-frequency oscillator, feedback control, and an internal switch capable of handling 500mA load current.  
- Designed for simplicity, it requires minimal external components for operation.  
- Features thermal shutdown and current limit protection for enhanced reliability.  

### **Features:**
- Adjustable output voltage with feedback accuracy of ±4%  
- Low power standby mode (IQ ≈ 80µA)  
- Internal frequency compensation  
- Built-in thermal shutdown protection  
- Current limiting and short-circuit protection  
- Available in a compact SOIC-8 package  

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

(Source: National Semiconductor datasheet for LM2594M-ADJ)

Application Scenarios & Design Considerations

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

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