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LM2599S-12 from NS,National Semiconductor

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LM2599S-12

Manufacturer: NS

SIMPLE SWITCHER Power Converter 150 KHz 3A Step-Down Voltage Regulator with Features

Partnumber Manufacturer Quantity Availability
LM2599S-12,LM2599S12 NS 9 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter 150 KHz 3A Step-Down Voltage Regulator with Features The LM2599S-12 is a step-down (buck) switching voltage regulator manufactured by ON Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** Fixed 12V  
- **Output Current:** Up to 3A  
- **Input Voltage Range:** 4.5V to 40V  
- **Switching Frequency:** 150 kHz  
- **Efficiency:** Up to 90%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-263-5 (D2PAK)  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions:**  
The LM2599S-12 is a monolithic integrated circuit that provides all active functions for a step-down switching regulator. It is designed for high-efficiency power conversion with minimal external components.  

### **Features:**  
- Simple and easy-to-use design  
- Requires only 4 external components  
- Internal frequency compensation  
- Fixed 12V output with ±4% tolerance  
- Low standby current (80 µA typical)  
- Soft-start capability to reduce inrush current  
- Available in a thermally enhanced package  

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

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