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LM2670T-5.0 from NSC,National Semiconductor

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LM2670T-5.0

Manufacturer: NSC

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

Partnumber Manufacturer Quantity Availability
LM2670T-5.0,LM2670T50 NSC 45 In Stock

Description and Introduction

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync The LM2670T-5.0 is a step-down voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 5.0V (fixed)  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 260 kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220 (5-pin)  
- **Regulation Type:** Switching Regulator (Buck Converter)  
- **Protection Features:** Thermal shutdown, current limiting  

### **Descriptions and Features:**  
- Simple and easy-to-use buck regulator.  
- Requires minimal external components.  
- Includes a fixed-frequency oscillator for stable operation.  
- High efficiency reduces heat dissipation.  
- Internal soft-start reduces inrush current.  
- Suitable for battery-powered and industrial applications.  
- Compatible with standard inductor and capacitor values.  

This regulator is designed for applications requiring a stable 5V output from higher input voltages.

Application Scenarios & Design Considerations

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync
Partnumber Manufacturer Quantity Availability
LM2670T-5.0,LM2670T50 NS 68 In Stock

Description and Introduction

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync The LM2670T-5.0 is a switching voltage regulator manufactured by National Semiconductor (NS). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** Fixed 5.0V  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 260 kHz (typical)  
- **Efficiency:** Up to 92%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220-5 (Through-Hole)  

### **Descriptions:**
- The LM2670T-5.0 is a monolithic integrated circuit that provides step-down (buck) DC-DC conversion.  
- It simplifies power supply design with minimal external components.  
- The regulator includes a fixed-frequency oscillator, thermal shutdown, current limiting, and an on/off control.  

### **Features:**
- **Simple and Efficient Design:** Requires only 5 external components.  
- **Low Power Standby Mode:** Uses <50µA in shutdown mode.  
- **Internal Soft-Start:** Reduces inrush current.  
- **Thermal Shutdown Protection:** Prevents overheating.  
- **Current Limiting:** Protects against overloads.  
- **Fixed Frequency Operation:** Minimizes noise interference.  

This information is based on the manufacturer's datasheet for the LM2670T-5.0.

Application Scenarios & Design Considerations

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

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