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LM2677S-ADJ from NSC,National Semiconductor

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LM2677S-ADJ

Manufacturer: NSC

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator with Sync

Partnumber Manufacturer Quantity Availability
LM2677S-ADJ,LM2677SADJ NSC 8300 In Stock

Description and Introduction

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator with Sync The LM2677S-ADJ is a switching regulator manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Input Voltage Range:** 8V to 40V  
- **Adjustable Output Voltage Range:** 1.23V to 37V  
- **Output Current:** Up to 5A  
- **Switching Frequency:** 260 kHz  
- **Efficiency:** Up to 92%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** TO-263 (D2PAK)  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions:**
The LM2677S-ADJ is a step-down (buck) switching voltage regulator designed for high-efficiency power conversion. It integrates a high-performance regulator with a fixed-frequency PWM control scheme, reducing external component count. The adjustable output version allows users to set the desired output voltage using external resistors.  

### **Features:**
- Simple and easy-to-use design  
- Requires minimal external components  
- Internal soft-start for controlled inrush current  
- High efficiency (up to 92%)  
- Wide input voltage range (8V to 40V)  
- Adjustable output voltage (1.23V to 37V)  
- Thermal shutdown and current limit protection  
- TO-263 package for improved thermal performance  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator with Sync

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