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LM2576S-15 from NS,National Semiconductor

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LM2576S-15

Manufacturer: NS

15V dual 3.0A step down switching voltage regulator

Partnumber Manufacturer Quantity Availability
LM2576S-15,LM2576S15 NS 34 In Stock

Description and Introduction

15V dual 3.0A step down switching voltage regulator The LM2576S-15 is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (NS). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** Fixed 15V  
- **Input Voltage Range:** 4.75V to 40V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 52 kHz (typical)  
- **Efficiency:** Up to 88% (depending on conditions)  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-263-5 (D2PAK)  

### **Descriptions:**
- The LM2576S-15 is a monolithic integrated circuit providing all active functions for a step-down switching regulator.  
- It is designed for easy implementation in buck converter applications with minimal external components.  
- The regulator includes a fixed-frequency oscillator, thermal shutdown, and current limit protection.  

### **Features:**
- **Fixed 15V Output Voltage**  
- **3A Output Current Capability**  
- **Wide Input Voltage Range (4.75V to 40V)**  
- **Internal Frequency Compensation**  
- **Thermal Shutdown and Current Limit Protection**  
- **Low Power Standby Mode (IQ ≈ 50μA)**  
- **Requires Only 4 External Components**  
- **Available in TO-263 Package**  

This information is based on the manufacturer's datasheet for the LM2576S-15.

Application Scenarios & Design Considerations

15V dual 3.0A step down switching voltage regulator
Partnumber Manufacturer Quantity Availability
LM2576S-15,LM2576S15 NSC 30 In Stock

Description and Introduction

15V dual 3.0A step down switching voltage regulator The LM2576S-15 is a step-down (buck) switching regulator manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Output Voltage:** Fixed 15V  
- **Output Current:** Up to 3A  
- **Input Voltage Range:** 4.75V to 40V  
- **Switching Frequency:** 52 kHz  
- **Efficiency:** Up to 88% (typical)  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package Type:** TO-263-5 (D2PAK)  
- **Regulation Type:** PWM (Pulse Width Modulation)  

### **Descriptions:**  
The LM2576S-15 is a monolithic integrated circuit designed for step-down voltage regulation. It simplifies power supply design by requiring minimal external components and provides high-efficiency power conversion. The device includes a fixed-frequency oscillator, a high-gain error amplifier, and internal current limiting and thermal shutdown protection.

### **Features:**  
- **Fixed 15V Output Voltage**  
- **3A Output Current Capability**  
- **Wide Input Voltage Range (4.75V to 40V)**  
- **Internal Frequency Compensation**  
- **Internal Soft-Start**  
- **Thermal Shutdown and Current Limit Protection**  
- **Low Power Standby Mode (IQ ≈ 50µA in shutdown)**  
- **Requires Only 4 External Components**  
- **Available in TO-263-5 Package**  

This information is based solely on the manufacturer's datasheet for the LM2576S-15 by NSC.

Application Scenarios & Design Considerations

15V dual 3.0A step down switching voltage regulator

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