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L4949E from ST,ST Microelectronics

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L4949E

Manufacturer: ST

MULTIFUNCTION VERY LOW DROP VOLTAGE REGULATOR

Partnumber Manufacturer Quantity Availability
L4949E ST 1695 In Stock

Description and Introduction

MULTIFUNCTION VERY LOW DROP VOLTAGE REGULATOR The L4949E is a low-dropout voltage regulator manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** Up to 28V  
- **Output Voltage Options:** 5V (fixed)  
- **Output Current:** Up to 250mA  
- **Dropout Voltage:** Typically 0.4V at 250mA  
- **Line Regulation:** 0.2% (typical)  
- **Load Regulation:** 0.4% (typical)  
- **Quiescent Current:** Typically 1.5mA  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-92, DPAK  

### **Descriptions:**  
- The L4949E is a low-dropout linear regulator designed for stable 5V output.  
- It includes built-in protection features such as thermal shutdown, short-circuit protection, and reverse polarity protection.  
- Suitable for automotive and industrial applications due to its wide input voltage range and robustness.  

### **Features:**  
- **Low Dropout Voltage:** Ensures efficient operation even with small input-output differentials.  
- **Low Quiescent Current:** Reduces power consumption in standby modes.  
- **Thermal Protection:** Prevents damage from overheating.  
- **Short-Circuit Protection:** Safeguards the device during fault conditions.  
- **Reverse Polarity Protection:** Enhances reliability in case of incorrect connections.  
- **Stable with Low-ESR Capacitors:** Works with ceramic or tantalum output capacitors.  

This information is strictly factual from the manufacturer's datasheet.

Application Scenarios & Design Considerations

MULTIFUNCTION VERY LOW DROP VOLTAGE REGULATOR

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