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LM2591HVS-3.3 from NS,National Semiconductor

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LM2591HVS-3.3

Manufacturer: NS

SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2591HVS-3.3,LM2591HVS33 NS 15 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator The LM2591HVS-3.3 is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Voltage:** Fixed 3.3V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 150 kHz  
- **Efficiency:** Up to 80%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** TO-263-5 (D2PAK)  
- **Protection Features:** Thermal shutdown, current limiting  

### **Descriptions:**  
The LM2591HVS-3.3 is a high-voltage, step-down switching regulator designed for applications requiring efficient power conversion. It integrates a fixed-frequency oscillator and a high-current switch, reducing external component count.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 4.5V to 40V input  
- **Fixed 3.3V Output:** No external feedback resistors needed  
- **High Efficiency:** Minimizes power loss  
- **Internal Current Limiting & Thermal Shutdown:** Enhances reliability  
- **Low Standby Current:** Improves efficiency in light-load conditions  
- **Simple External Components:** Requires only an inductor, diode, and capacitors  

This regulator is suitable for industrial, automotive, and battery-powered applications.

Partnumber Manufacturer Quantity Availability
LM2591HVS-3.3,LM2591HVS33 26 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator The LM2591HVS-3.3 is a step-down (buck) switching regulator manufactured by Texas Instruments. Below are its key specifications, descriptions, and features:

### **Manufacturer Specifications:**
- **Input Voltage Range:** 4.5V to 60V  
- **Output Voltage:** Fixed 3.3V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 150 kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263-5 (DDPAK)  

### **Descriptions:**
- The LM2591HVS-3.3 is a monolithic integrated circuit designed for step-down voltage regulation.  
- It is optimized for high-voltage applications and provides a fixed 3.3V output.  
- The device includes internal frequency compensation, a fixed-frequency oscillator, and thermal shutdown protection.  

### **Features:**
- **Wide Input Voltage Range (4.5V to 60V)** – Suitable for industrial and automotive applications.  
- **Fixed 3.3V Output** – No external feedback resistors required.  
- **High Efficiency (Up to 90%)** – Minimizes power dissipation.  
- **150 kHz Switching Frequency** – Reduces the size of external components.  
- **Thermal Shutdown & Current Limit Protection** – Enhances reliability.  
- **Low Power Standby Mode** – Improves efficiency at light loads.  
- **TO-263-5 Package** – Allows for efficient heat dissipation.  

This information is sourced from the manufacturer's datasheet.

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