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LM3478MM from NSC,National Semiconductor

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LM3478MM

Manufacturer: NSC

High Efficiency Low-Side N-Channel Controller for Switching Regulator

Partnumber Manufacturer Quantity Availability
LM3478MM NSC 867 In Stock

Description and Introduction

High Efficiency Low-Side N-Channel Controller for Switching Regulator The LM3478MM is a switching regulator controller manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Input Voltage Range:** 2.97V to 40V  
- **Output Voltage Range:** Adjustable  
- **Switching Frequency:** Up to 1MHz  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-pin VSSOP (MM)  
- **Control Method:** Current Mode  
- **Duty Cycle Range:** Up to 100%  
- **Quiescent Current:** 2.5mA (typical)  
- **Peak Current Limit:** Programmable  

### **Descriptions:**  
The LM3478MM is a high-performance, current-mode PWM controller designed for DC-DC boost, flyback, SEPIC, and buck-boost converters. It features a wide input voltage range and adjustable switching frequency, making it suitable for various power supply applications.  

### **Features:**  
- Wide input voltage range (2.97V to 40V)  
- Adjustable switching frequency (up to 1MHz)  
- Current-mode control for improved transient response  
- Programmable soft-start  
- Under-voltage lockout (UVLO)  
- Thermal shutdown protection  
- Low shutdown current (<1µA)  
- Adjustable peak current limit  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

High Efficiency Low-Side N-Channel Controller for Switching Regulator

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