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LM2678S-3.3

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2678S-3.3,LM2678S33 41 In Stock

Description and Introduction

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator The LM2678S-3.3 is a step-down voltage regulator manufactured by Texas Instruments.  

**Manufacturer Specifications:**  
- **Input Voltage Range:** 8V to 40V  
- **Output Voltage:** 3.3V (fixed)  
- **Output Current:** Up to 5A  
- **Switching Frequency:** 260 kHz  
- **Efficiency:** Up to 92%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-263-7 (DDPAK/TO-263)  

**Descriptions:**  
The LM2678S-3.3 is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator. It is designed to drive a 5A load with excellent line and load regulation.  

**Features:**  
- Simple and easy-to-use design  
- Requires minimal external components  
- Internal soft-start for reduced inrush current  
- Thermal shutdown and current limit protection  
- Adjustable output voltage version available (LM2678)  
- Low power standby mode  
- High efficiency due to low dropout operation  

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

Application Scenarios & Design Considerations

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator

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