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LM2597M-3.3 from NSC,National Semiconductor

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LM2597M-3.3

Manufacturer: NSC

SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2597M-3.3,LM2597M33 NSC 2 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator The LM2597M-3.3 is a step-down (buck) switching regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 150 kHz  
- **Efficiency:** Up to 92%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-263 (D2PAK)  
- **Regulation Type:** PWM (Pulse Width Modulation)  
- **Protection Features:** Thermal shutdown and current limit  

### **Descriptions and Features:**  
- **Monolithic Design:** Integrates a high-efficiency switching regulator with all necessary control circuitry.  
- **Low Power Standby Mode:** Consumes minimal current when in shutdown.  
- **Simple External Components:** Requires only four external components for operation (inductor, diode, input, and output capacitors).  
- **Adjustable Soft-Start:** Reduces inrush current during startup.  
- **Wide Input Voltage Range:** Suitable for various industrial and automotive applications.  
- **High Efficiency:** Minimizes power dissipation and heat generation.  
- **Thermal Protection:** Prevents damage from overheating.  

This regulator is commonly used in power supply designs for industrial, automotive, and consumer electronics applications.

Application Scenarios & Design Considerations

SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator
Partnumber Manufacturer Quantity Availability
LM2597M-3.3,LM2597M33 NS 1020 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator The LM2597M-3.3 is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features:  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 150 kHz (fixed)  
- **Efficiency:** Up to 92%  
- **Operating Junction Temperature Range:** -40°C to +125°C  
- **Package:** TO-263 (D2PAK)  
- **Regulation Type:** PWM (Pulse Width Modulation)  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions:**  
The LM2597M-3.3 is a monolithic integrated circuit that provides all active functions for a step-down switching regulator. It is designed for easy implementation in applications requiring efficient power conversion with minimal external components.  

### **Features:**  
- **Simple and Easy to Use:** Requires only four external components.  
- **High Efficiency:** Reduces power dissipation compared to linear regulators.  
- **Internal Frequency Compensation:** Simplifies circuit design.  
- **Low Power Standby Mode:** Consumes minimal current when shut down.  
- **Wide Input Voltage Range:** Suitable for various power supply applications.  
- **Thermal Shutdown and Current Limit Protection:** Enhances reliability.  

This information is based on the manufacturer's datasheet. For detailed application notes, refer to the official documentation.

Application Scenarios & Design Considerations

SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator

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