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LM3671MFX-ADJ from NS国半,National Semiconductor

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LM3671MFX-ADJ

Manufacturer: NS国半

2MHz / 600mA Step-Down DC-DC Converter in SOT23-5

Partnumber Manufacturer Quantity Availability
LM3671MFX-ADJ,LM3671MFXADJ NS国半 28000 In Stock

Description and Introduction

2MHz / 600mA Step-Down DC-DC Converter in SOT23-5 The LM3671MFX-ADJ is a step-down DC-DC converter manufactured by National Semiconductor (NS国半). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage Range:** Adjustable from 1V to 3.3V (via external resistors)  
- **Output Current:** Up to 600mA  
- **Switching Frequency:** 2MHz (typical)  
- **Efficiency:** Up to 96%  
- **Quiescent Current:** 16µA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOT-23-5  

### **Descriptions:**
- The LM3671MFX-ADJ is a high-efficiency, step-down DC-DC converter optimized for battery-powered applications.  
- It provides a regulated adjustable output voltage using an external resistor divider.  
- The device operates in pulse-width modulation (PWM) mode for high efficiency at moderate to heavy loads and automatically switches to power-save mode (PFM) at light loads to improve efficiency.  

### **Features:**
- **Adjustable Output Voltage** (1V to 3.3V)  
- **Low Quiescent Current** (16µA typical)  
- **High Efficiency** (up to 96%)  
- **Internal Soft-Start** (reduces inrush current)  
- **Over-Temperature Protection**  
- **Short-Circuit Protection**  
- **Small Footprint** (SOT-23-5 package)  
- **No External Schottky Diode Required** (integrated synchronous rectifier)  

This information is based solely on the datasheet and technical documentation for the LM3671MFX-ADJ by National Semiconductor.

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