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LM3490IM5X-15 from NS国半,National Semiconductor

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LM3490IM5X-15

Manufacturer: NS国半

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

Partnumber Manufacturer Quantity Availability
LM3490IM5X-15,LM3490IM5X15 NS国半 28000 In Stock

Description and Introduction

100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF The LM3490IM5X-15 is a step-down switching regulator manufactured by National Semiconductor (NS国半). Here are the key specifications, descriptions, and features from Ic-phoenix technical data files:

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

### **Descriptions:**
- The LM3490IM5X-15 is a high-efficiency, step-down DC-DC converter designed for low-power applications.  
- It integrates a high-side N-channel MOSFET and requires minimal external components.  
- Suitable for industrial, automotive, and battery-powered systems.  

### **Features:**
- **Wide Input Voltage Range:** Supports 4.5V to 42V input.  
- **Fixed Output Voltage:** Preset to 1.5V.  
- **High Efficiency:** Up to 90% efficiency with internal MOSFET.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Current Limit Protection:** Prevents damage from excessive load currents.  
- **Low Quiescent Current:** Improves efficiency in light-load conditions.  

This information is strictly based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF
Partnumber Manufacturer Quantity Availability
LM3490IM5X-15,LM3490IM5X15 NATIONAL 3000 In Stock

Description and Introduction

100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF The LM3490IM5X-15 is a step-down DC-DC converter manufactured by National Semiconductor (now part of Texas Instruments).  

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

### **Descriptions:**  
- The LM3490IM5X-15 is a high-efficiency, step-down (buck) DC-DC converter designed for low-power applications.  
- It integrates a high-side N-channel MOSFET and requires minimal external components.  
- Features include thermal shutdown, current limiting, and undervoltage lockout (UVLO).  

### **Features:**  
- **Wide Input Voltage Range (4.5V to 42V)**  
- **Fixed 1.5V Output Voltage**  
- **Internal N-Channel MOSFET Switch**  
- **500kHz Switching Frequency**  
- **Thermal Shutdown Protection**  
- **Current Limiting and UVLO Protection**  
- **Low Quiescent Current (Typical 85µA)**  
- **Small SOT-23-5 Package**  

This device is suitable for industrial, automotive, and battery-powered applications requiring a stable 1.5V output from a higher input voltage.

Application Scenarios & Design Considerations

100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF
Partnumber Manufacturer Quantity Availability
LM3490IM5X-15,LM3490IM5X15 NS 2000 In Stock

Description and Introduction

100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF The LM3490IM5X-15 is a step-down DC-DC converter manufactured by National Semiconductor (NS). Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 35V  
- **Output Voltage:** 1.5V (fixed)  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 500kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5  

### **Descriptions:**
- A monolithic buck (step-down) switching regulator.  
- Designed for high-efficiency power conversion in a compact package.  
- Features internal compensation and soft-start for stable operation.  

### **Features:**
- **Wide Input Voltage Range:** Supports 4.5V to 35V input.  
- **Fixed Output Voltage:** 1.5V preset.  
- **High Efficiency:** Up to 90% conversion efficiency.  
- **Internal Compensation:** Simplifies external component requirements.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Thermal Shutdown:** Protects against overheating.  
- **Current Limit Protection:** Safeguards against excessive load currents.  

This information is sourced from the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

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

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