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LM2670SD-ADJ from NS,National Semiconductor

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LM2670SD-ADJ

Manufacturer: NS

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync

Partnumber Manufacturer Quantity Availability
LM2670SD-ADJ,LM2670SDADJ NS 1298 In Stock

Description and Introduction

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync The LM2670SD-ADJ is a switching voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 8V to 40V  
- **Adjustable Output Voltage:** 1.23V to 37V  
- **Output Current:** 500mA (guaranteed)  
- **Switching Frequency:** 260kHz (typical)  
- **Efficiency:** Up to 92%  
- **Package:** SOIC-8 (D)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Features Internal Soft-Start**  
- **Low Power Standby Mode (IQ < 50μA)**  

### **Descriptions:**  
The LM2670SD-ADJ is a step-down (buck) switching regulator that provides high efficiency with minimal external components. It includes a fixed-frequency oscillator, thermal shutdown, and current limiting for robust operation.  

### **Features:**  
- **Simple Adjustable Output** (using external resistors)  
- **Wide Input Voltage Range** (8V to 40V)  
- **High Efficiency** (up to 92%)  
- **Internal Soft-Start** (reduces inrush current)  
- **Thermal Shutdown Protection**  
- **Current Limiting Protection**  
- **Low Standby Current** (<50μA in shutdown mode)  

This regulator is suitable for applications requiring efficient power conversion with adjustable output voltage.

Application Scenarios & Design Considerations

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync

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