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LM2575-5.0WU from MICREL

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LM2575-5.0WU

Manufacturer: MICREL

52kHz Simple 1A Buck Regulator

Partnumber Manufacturer Quantity Availability
LM2575-5.0WU,LM257550WU MICREL 60 In Stock

Description and Introduction

52kHz Simple 1A Buck Regulator The LM2575-5.0WU is a step-down (buck) switching regulator manufactured by **MICREL** (now part of Microchip Technology).  

### **Specifications:**  
- **Output Voltage:** Fixed 5.0V  
- **Input Voltage Range:** 4.75V to 40V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 52 kHz (typical)  
- **Efficiency:** Up to 88%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263 (D2PAK)  
- **Regulator Type:** Monolithic Buck Converter  

### **Descriptions:**  
- The LM2575-5.0WU is a simple, easy-to-use step-down voltage regulator.  
- It requires minimal external components and includes **fixed-frequency internal oscillation** and **cycle-by-cycle current limiting**.  
- Suitable for **battery-powered applications, power supplies, and industrial systems**.  

### **Features:**  
- **Fixed 5.0V output** (±4% tolerance)  
- **Wide input voltage range** (4.75V to 40V)  
- **Low standby current** (50µA typical in shutdown mode)  
- **Thermal shutdown and current limit protection**  
- **Requires only 4 external components** for operation  
- **Available in a TO-263 surface-mount package**  

This regulator is designed for **efficient power conversion** in applications requiring a stable 5V supply.

Application Scenarios & Design Considerations

52kHz Simple 1A Buck Regulator
Partnumber Manufacturer Quantity Availability
LM2575-5.0WU,LM257550WU MICREL 135 In Stock

Description and Introduction

52kHz Simple 1A Buck Regulator The LM2575-5.0WU is a step-down (buck) switching regulator manufactured by **Microchip Technology (formerly Microsemi, which acquired Microrel)**. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Output Voltage:** Fixed 5.0V  
- **Output Current:** Up to 1A  
- **Input Voltage Range:** 4.75V to 40V  
- **Switching Frequency:** 52 kHz (typical)  
- **Efficiency:** Up to 88% (depending on conditions)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263-5 (D2PAK)  
- **Regulation Type:** Buck (Step-Down)  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions:**  
The LM2575-5.0WU is a monolithic integrated circuit designed for step-down voltage regulation. It simplifies power supply design by requiring minimal external components. It is suitable for applications requiring efficient power conversion with a fixed 5V output.  

### **Features:**  
- **Fixed 5.0V Output** (also available in adjustable versions)  
- **Wide Input Voltage Range** (4.75V to 40V)  
- **1A Load Current Capability**  
- **Internal Frequency Compensation**  
- **Low Power Standby Mode** (IQ ≈ 50µA)  
- **Thermal Shutdown & Current Limit Protection**  
- **Requires Only 4 External Components** (inductor, diode, capacitor, and input capacitor)  
- **Stable with Low-ESR Output Capacitors**  

This information is based on the manufacturer's datasheet and product documentation.

Application Scenarios & Design Considerations

52kHz Simple 1A Buck Regulator

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