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LM2637M from NSC,National Semiconductor

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LM2637M

Manufacturer: NSC

Motherboard Power Supply Solution with a 5-Bit Programmable Switching Controller and Two Linear Regulator Controllers

Partnumber Manufacturer Quantity Availability
LM2637M NSC 4 In Stock

Description and Introduction

Motherboard Power Supply Solution with a 5-Bit Programmable Switching Controller and Two Linear Regulator Controllers The LM2637M is a switching regulator controller manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Manufacturer:** National Semiconductor (NSC)  
- **Type:** Switching Regulator Controller  
- **Topology:** Step-Down (Buck)  
- **Input Voltage Range:** 4.5V to 30V  
- **Output Voltage Range:** Adjustable (via external resistors)  
- **Switching Frequency:** 150 kHz (fixed)  
- **Output Current:** Up to 5A (with external components)  
- **Duty Cycle Range:** 0% to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Pin SOIC (LM2637M)  

### **Descriptions:**
The LM2637M is a high-efficiency, step-down DC-DC switching regulator controller designed for applications requiring high current and adjustable output voltage. It operates with an external N-channel MOSFET and supports synchronous rectification for improved efficiency. The device includes features such as soft-start, current limiting, and thermal shutdown for robust performance.

### **Features:**
- **Wide Input Voltage Range (4.5V to 30V)**  
- **Adjustable Output Voltage**  
- **Fixed 150 kHz Switching Frequency**  
- **Synchronous Rectification Support**  
- **Soft-Start Function**  
- **Current Limiting Protection**  
- **Thermal Shutdown Protection**  
- **Low Power Standby Mode**  
- **16-Pin SOIC Package**  

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

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