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LM3485MM/NOPB from NSC,National Semiconductor

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LM3485MM/NOPB

Manufacturer: NSC

4.5-35V, Hysteretic Non-Synchronous PFET Buck Controller 8-VSSOP -40 to 125

Partnumber Manufacturer Quantity Availability
LM3485MM/NOPB,LM3485MMNOPB NSC 7000 In Stock

Description and Introduction

4.5-35V, Hysteretic Non-Synchronous PFET Buck Controller 8-VSSOP -40 to 125 The LM3485MM/NOPB is a switching regulator manufactured by National Semiconductor (NSC). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 35V  
- **Output Voltage Range:** Adjustable from 1.26V to 32V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 100kHz to 1MHz (adjustable with external resistor)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-Pin VSSOP (MSOP)  

### **Descriptions:**  
- The LM3485MM/NOPB is a current-mode DC-DC buck (step-down) switching regulator.  
- It integrates a high-side N-channel MOSFET for efficient power conversion.  
- Designed for low-power applications requiring high efficiency and compact size.  

### **Features:**  
- **Adjustable Output Voltage** via external resistors  
- **Adjustable Switching Frequency** for optimized performance  
- **Soft-Start Function** to limit inrush current  
- **Thermal Shutdown Protection**  
- **Cycle-by-Cycle Current Limiting**  
- **Under-Voltage Lockout (UVLO)**  

This regulator is suitable for applications such as industrial systems, automotive electronics, and portable devices.

Partnumber Manufacturer Quantity Availability
LM3485MM/NOPB,LM3485MMNOPB NS 583 In Stock

Description and Introduction

4.5-35V, Hysteretic Non-Synchronous PFET Buck Controller 8-VSSOP -40 to 125 The **LM3485MM/NOPB** is a switching regulator manufactured by **National Semiconductor (NS)**.  

### **Key Specifications:**  
- **Input Voltage Range:** 4.5V to 35V  
- **Output Voltage Range:** Adjustable from 1.242V to 33V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** Adjustable up to 1MHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-pin VSSOP (MSOP)  

### **Descriptions:**  
The LM3485MM/NOPB is a **step-down (buck) DC-DC converter** with an integrated N-channel MOSFET. It is designed for high-efficiency voltage regulation in applications requiring a wide input voltage range.  

### **Features:**  
- **Adjustable Output Voltage** via external resistors  
- **Internal Soft-Start** to reduce inrush current  
- **Cycle-by-Cycle Current Limiting** for protection  
- **Thermal Shutdown** to prevent overheating  
- **Low Shutdown Current** (<1µA)  
- **Synchronous Rectification Capability** for improved efficiency  

This regulator is commonly used in **battery-powered systems, industrial controls, and automotive applications**.  

Would you like any additional details?

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