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LM2574-3.3BWM from MICREL

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LM2574-3.3BWM

Manufacturer: MICREL

52kHz Simple 0.5A Buck Regulator

Partnumber Manufacturer Quantity Availability
LM2574-3.3BWM,LM257433BWM MICREL 2783 In Stock

Description and Introduction

52kHz Simple 0.5A Buck Regulator The LM2574-3.3BWM is a step-down (buck) switching regulator manufactured by **MICREL** (now part of Microchip Technology).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Current:** Up to 0.5A  
- **Switching Frequency:** 52 kHz (fixed)  
- **Efficiency:** Up to 80%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-pin SOIC (BWM)  

### **Descriptions:**  
The LM2574-3.3BWM is a monolithic integrated circuit that provides step-down (buck) DC-DC conversion with a fixed 3.3V output. It is designed for easy implementation and requires minimal external components.  

### **Features:**  
- **Fixed 3.3V Output**  
- **Wide Input Voltage Range (4.5V to 40V)**  
- **Low Power Standby Mode (IQ ~50µA)**  
- **Internal Current Limiting & Thermal Shutdown**  
- **Requires Only 4 External Components**  
- **Available in TO-220, DIP, and SOIC Packages**  

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

Application Scenarios & Design Considerations

52kHz Simple 0.5A Buck Regulator
Partnumber Manufacturer Quantity Availability
LM2574-3.3BWM,LM257433BWM MMCREL 958 In Stock

Description and Introduction

52kHz Simple 0.5A Buck Regulator The LM2574-3.3BWM is a step-down (buck) switching regulator from manufacturer MMCREL.  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Current:** Up to 0.5A  
- **Switching Frequency:** 52 kHz  
- **Efficiency:** Up to 80%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-8 (BWM)  

### **Descriptions:**  
The LM2574-3.3BWM is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator. It is designed for easy implementation and requires minimal external components.  

### **Features:**  
- Simple and easy-to-use design  
- Requires only 4 external components  
- Internal frequency compensation  
- Fixed-frequency oscillator (52 kHz)  
- Thermal shutdown and current limit protection  
- Low power standby mode  
- Available in a compact SOIC-8 package  

This regulator is suitable for applications requiring efficient step-down voltage conversion with a fixed 3.3V output.

Application Scenarios & Design Considerations

52kHz Simple 0.5A Buck Regulator
Partnumber Manufacturer Quantity Availability
LM2574-3.3BWM,LM257433BWM MICREL 409 In Stock

Description and Introduction

52kHz Simple 0.5A Buck Regulator The LM2574-3.3BWM is a step-down switching regulator manufactured by **MICREL**.  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Current:** Up to 0.5A  
- **Switching Frequency:** 52 kHz (typical)  
- **Efficiency:** Up to 80%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-8 (BWM)  

### **Descriptions:**  
The LM2574-3.3BWM is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator. It is designed to drive a 0.5A load with excellent line and load regulation.  

### **Features:**  
- Simple and easy-to-use design  
- Requires minimal external components  
- Internal frequency compensation  
- Fixed-frequency oscillator  
- Thermal shutdown and current limit protection  
- Low power standby mode  

This regulator is suitable for a wide range of applications, including power supplies, industrial controls, and automotive systems.

Application Scenarios & Design Considerations

52kHz Simple 0.5A Buck Regulator

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