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LM2575-3.3WU from MICREL

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LM2575-3.3WU

Manufacturer: MICREL

52kHz Simple 1A Buck Regulator

Partnumber Manufacturer Quantity Availability
LM2575-3.3WU,LM257533WU MICREL 970 In Stock

Description and Introduction

52kHz Simple 1A Buck Regulator The LM2575-3.3WU is a step-down (buck) switching regulator manufactured by **MICREL** (now part of Microchip Technology).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Output Current:** Up to 1A  
- **Input Voltage Range:** 4.75V to 40V  
- **Switching Frequency:** 52 kHz (fixed)  
- **Efficiency:** Up to 88%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263 (D2PAK)  
- **Regulator Type:** Buck (Step-Down)  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions:**  
The LM2575-3.3WU is a monolithic switching regulator designed for step-down voltage regulation. It simplifies power supply design by requiring minimal external components and providing high efficiency.  

### **Features:**  
- **Fixed 3.3V Output**  
- **1A Output Current Capability**  
- **Wide Input Voltage Range (4.75V to 40V)**  
- **Internal Frequency Compensation**  
- **Thermal Shutdown & Current Limit Protection**  
- **Low Power Standby Mode (50µA typical)**  
- **Requires Only 4 External Components**  
- **TO-263 Package for High Power Dissipation**  

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

Application Scenarios & Design Considerations

52kHz Simple 1A Buck Regulator

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