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LM3490IM5X-12 from NS,National Semiconductor

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LM3490IM5X-12

Manufacturer: NS

100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF

Partnumber Manufacturer Quantity Availability
LM3490IM5X-12,LM3490IM5X12 NS 3000 In Stock

Description and Introduction

100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF The LM3490IM5X-12 is a step-down switching regulator manufactured by Texas Instruments (NS).  

**Specifications:**  
- **Output Voltage:** 1.22V (adjustable)  
- **Input Voltage Range:** 4.5V to 42V  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5  

**Descriptions and Features:**  
- **Buck Converter:** Steps down high input voltage to a lower regulated output.  
- **Adjustable Output:** Can be set using external resistors.  
- **Integrated Power MOSFET:** Simplifies design and reduces external components.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Current Limit Protection:** Safeguards against excessive load currents.  
- **Low Quiescent Current:** Improves efficiency at light loads.  
- **Soft-Start Function:** Reduces inrush current during startup.  

This regulator is suitable for industrial, automotive, and general-purpose applications requiring efficient power conversion.

Application Scenarios & Design Considerations

100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF

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