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LM2574YN from MIC

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LM2574YN

Manufacturer: MIC

52kHz Simple 0.5A Buck Regulator

Partnumber Manufacturer Quantity Availability
LM2574YN MIC 6491 In Stock

Description and Introduction

52kHz Simple 0.5A Buck Regulator The LM2574YN is a step-down (buck) switching regulator manufactured by Microchip Technology (formerly Micrel). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Voltage Options:**  
  - Fixed: 3.3V, 5V, 12V, 15V  
  - Adjustable: 1.23V to 37V (using external resistors)  
- **Output Current:** 500mA (max)  
- **Switching Frequency:** 52kHz (typical)  
- **Efficiency:** Up to 80%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** PDIP-8 (Plastic Dual In-Line Package)  

### **Descriptions:**  
- The LM2574YN is a monolithic integrated circuit designed for step-down voltage regulation.  
- It simplifies power supply design by requiring minimal external components.  
- Includes built-in frequency compensation and a fixed-frequency oscillator.  
- Suitable for battery-powered applications, industrial systems, and automotive electronics.  

### **Features:**  
- **Low Power Consumption:** 5mA quiescent current (typical).  
- **Internal Current Limiting & Thermal Shutdown:** Protects against overloads.  
- **Soft-Start Capability:** Reduces inrush current.  
- **Wide Input Voltage Range:** Supports 4.5V to 40V operation.  
- **Stable with Low-ESR Capacitors:** Works with ceramic or electrolytic capacitors.  
- **Requires Only 4 External Components:** Simplifies circuit design.  

This information is strictly factual from the manufacturer's datasheet.

Application Scenarios & Design Considerations

52kHz Simple 0.5A Buck Regulator

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