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LM3485MMX from NSC,National Semiconductor

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LM3485MMX

Manufacturer: NSC

Hysteretic PFET Buck Controller

Partnumber Manufacturer Quantity Availability
LM3485MMX NSC 452 In Stock

Description and Introduction

Hysteretic PFET Buck Controller The LM3485MMX is a step-down switching regulator manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 35V  
- **Output Voltage Range:** Adjustable down to 1.26V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 100kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-pin VSSOP (MSOP)  

### **Descriptions:**  
The LM3485MMX is a current-mode PWM buck (step-down) DC-DC converter. It integrates a high-side N-channel MOSFET and is designed for high efficiency and compact power supply solutions. It operates in continuous conduction mode (CCM) and includes features like thermal shutdown and current limiting for protection.  

### **Features:**  
- Integrated N-channel MOSFET  
- Adjustable output voltage  
- Internal soft-start  
- Thermal shutdown protection  
- Current limiting  
- Low shutdown current (<1µA)  
- Wide input voltage range  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Hysteretic PFET Buck Controller

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