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LM3671TL-ADJ from NS,National Semiconductor

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15.625ms

LM3671TL-ADJ

Manufacturer: NS

2MHz, 600mA Step-Down DC-DC Converter

Partnumber Manufacturer Quantity Availability
LM3671TL-ADJ,LM3671TLADJ NS 50 In Stock

Description and Introduction

2MHz, 600mA Step-Down DC-DC Converter The LM3671TL-ADJ is a step-down DC-DC converter manufactured by Texas Instruments (formerly National Semiconductor, NS).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Adjustable Output Voltage Range:** 1V to 3.3V (set via external resistors)  
- **Output Current:** Up to 600mA  
- **Switching Frequency:** 1.6MHz (typical)  
- **Efficiency:** Up to 95%  
- **Quiescent Current:** 16µA (typical)  
- **Package:** 5-pin SOT-23 (TL package)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Features:**  
  - Automatic PFM/PWM mode switching  
  - Internal soft-start  
  - Over-temperature protection  
  - Short-circuit protection  
  - Low dropout operation  

### **Description:**  
The LM3671TL-ADJ is a high-efficiency, step-down DC-DC converter optimized for battery-powered applications. It provides a regulated output voltage from an input supply as low as 2.7V, making it suitable for portable electronics.  

### **Features:**  
- High efficiency across a wide load range  
- Low quiescent current for extended battery life  
- Small footprint (SOT-23 package)  
- Adjustable output voltage  
- Integrated synchronous rectifier  
- No external Schottky diode required  

This device is commonly used in smartphones, PDAs, portable media players, and other low-power applications.  

(Note: Texas Instruments acquired National Semiconductor in 2011, so the LM3671TL-ADJ is now part of TI’s product portfolio.)

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