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LM3570SD from NSC,National Semiconductor

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LM3570SD

Manufacturer: NSC

Low Noise White LED Driver System

Partnumber Manufacturer Quantity Availability
LM3570SD NSC 727 In Stock

Description and Introduction

Low Noise White LED Driver System The LM3570SD 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:** 4V to 30V  
- **Output Voltage Range:** Adjustable from 1.25V to 26V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 100kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-8 (SD package)  

### **Descriptions:**  
- The LM3570SD is a step-down (buck) switching regulator designed for high-efficiency power conversion.  
- It integrates a power switch, oscillator, and control circuitry to provide a compact solution for DC-DC conversion.  
- Suitable for applications requiring high current and adjustable output voltage.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 4V to 30V input.  
- **Adjustable Output Voltage:** Configurable via external resistors.  
- **High Efficiency:** Up to 90% efficiency reduces power loss.  
- **Current Limiting Protection:** Prevents damage from overloads.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **SOIC-8 Package:** Compact surface-mount design.  

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

Application Scenarios & Design Considerations

Low Noise White LED Driver System
Partnumber Manufacturer Quantity Availability
LM3570SD NS 324 In Stock

Description and Introduction

Low Noise White LED Driver System The LM3570SD is a switching regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Input Voltage Range:** 4V to 30V  
- **Output Voltage Range:** Adjustable from 1.23V to 29V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 500 kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-Pin SOIC (SD)  

### **Descriptions:**  
The LM3570SD is a high-efficiency, step-down (buck) switching regulator designed for applications requiring a stable DC output from a higher input voltage. It integrates a power MOSFET switch, oscillator, and control circuitry, reducing external component count.  

### **Features:**  
- **Adjustable Output Voltage** via external resistors  
- **Internal Soft-Start** to limit inrush current  
- **Overcurrent Protection** with hiccup mode  
- **Thermal Shutdown** for overtemperature protection  
- **Low Quiescent Current** (typically 2.5mA)  
- **Synchronous Rectification** for improved efficiency  

This information is based on the manufacturer's datasheet. For detailed application notes, refer to the official documentation.

Application Scenarios & Design Considerations

Low Noise White LED Driver System

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