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LM3477MM/NOPB from NS,National Semiconductor

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LM3477MM/NOPB

Manufacturer: NS

High Efficiency High-Side N-Channel Controller for Switching Regulator 8-VSSOP -40 to 125

Partnumber Manufacturer Quantity Availability
LM3477MM/NOPB,LM3477MMNOPB NS 620 In Stock

Description and Introduction

High Efficiency High-Side N-Channel Controller for Switching Regulator 8-VSSOP -40 to 125 The **LM3477MM/NOPB** is a switching controller manufactured by **NS (National Semiconductor)**.  

### **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 (MSOP)  
- **Topology:** Buck, Boost, Flyback, SEPIC  
- **Control Method:** Current Mode  
- **Duty Cycle:** Up to 95%  
- **Current Limit:** Adjustable  
- **Features:**  
  - Wide input voltage range  
  - Adjustable soft-start  
  - Under-voltage lockout (UVLO)  
  - Thermal shutdown protection  
  - Low shutdown current  

### **Descriptions:**  
The LM3477MM/NOPB is a high-performance switching controller designed for DC-DC converter applications. It supports multiple topologies, including buck, boost, flyback, and SEPIC, making it versatile for various power supply designs.  

### **Features:**  
- **Wide Input Voltage Range (2.97V to 40V)** – Suitable for automotive and industrial applications.  
- **Current Mode Control** – Ensures stable operation and fast transient response.  
- **Adjustable Switching Frequency (Up to 1MHz)** – Allows optimization for efficiency and size.  
- **Thermal Shutdown Protection** – Prevents overheating damage.  
- **Under-Voltage Lockout (UVLO)** – Ensures proper operation under low input voltage conditions.  
- **Low Shutdown Current** – Reduces power consumption in standby mode.  

This device is commonly used in power supply designs for automotive, industrial, and telecom applications.

Application Scenarios & Design Considerations

High Efficiency High-Side N-Channel Controller for Switching Regulator 8-VSSOP -40 to 125

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