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LM2575-5.0WT from MICREL

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LM2575-5.0WT

Manufacturer: MICREL

52kHz Simple 1A Buck Regulator

Partnumber Manufacturer Quantity Availability
LM2575-5.0WT,LM257550WT MICREL 1975 In Stock

Description and Introduction

52kHz Simple 1A Buck Regulator The LM2575-5.0WT is a step-down (buck) switching voltage regulator manufactured by MICREL (now part of Microchip Technology). Here are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 5.0V (fixed)  
- **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 (D2PAK)  
- **Regulation Type:** Switching (Buck Converter)  

### **Descriptions:**
- The LM2575-5.0WT 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.  
- The device includes a fixed-frequency oscillator, a high-efficiency switch, and internal feedback control.  

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

This regulator is commonly used in power supply applications where a stable 5V output is required from a higher input voltage.

Application Scenarios & Design Considerations

52kHz Simple 1A Buck Regulator

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