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LM2940SX-5.0

1A Low Dropout Regulator

Partnumber Manufacturer Quantity Availability
LM2940SX-5.0,LM2940SX50 31 In Stock

Description and Introduction

1A Low Dropout Regulator The LM2940SX-5.0 is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (formerly National Semiconductor). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 5.0V (fixed)  
- **Output Current:** Up to 1A  
- **Dropout Voltage:** Typically 0.5V at full load (1A)  
- **Input Voltage Range:** 5.5V to 26V  
- **Line Regulation:** 0.3% (typical)  
- **Load Regulation:** 0.4% (typical)  
- **Quiescent Current:** 10mA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** TO-263 (D2PAK)  

### **Descriptions:**
- The LM2940SX-5.0 is a fixed-output LDO regulator designed to provide a stable 5V output with low dropout voltage.  
- It includes built-in protection features such as thermal shutdown and current limiting.  
- Suitable for battery-powered and automotive applications due to its wide input voltage range.  

### **Features:**
- **Low Dropout Voltage:** Ensures efficient regulation even when input voltage is close to output.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Short-Circuit Protection:** Safeguards against output shorts.  
- **Reverse-Battery Protection:** Withstands reverse polarity conditions.  
- **Low Quiescent Current:** Helps improve efficiency in battery-operated devices.  
- **Stable with Low-ESR Capacitors:** Works reliably with ceramic or tantalum output capacitors.  

This information is based solely on the manufacturer's datasheet for the LM2940SX-5.0.

Application Scenarios & Design Considerations

1A Low Dropout Regulator
Partnumber Manufacturer Quantity Availability
LM2940SX-5.0,LM2940SX50 NS 1090 In Stock

Description and Introduction

1A Low Dropout Regulator The LM2940SX-5.0 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 5.0V (fixed)  
- **Output Current:** Up to 1A  
- **Dropout Voltage:** Typically 0.5V at full load  
- **Input Voltage Range:** Up to 26V  
- **Line Regulation:** 0.04% (typical)  
- **Load Regulation:** 0.3% (typical)  
- **Quiescent Current:** 10mA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263 (SMD)  

### **Descriptions:**
- The LM2940SX-5.0 is a fixed 5V LDO regulator designed to provide stable voltage with low dropout.  
- It includes built-in protection features such as thermal shutdown and current limiting.  
- Suitable for battery-powered and automotive applications due to its wide input voltage range.  

### **Features:**
- Low dropout voltage (0.5V typical at full load)  
- Low quiescent current  
- Reverse battery protection  
- Internal thermal shutdown  
- Short-circuit and current-limit protection  
- Stable with low-ESR capacitors  

This regulator is commonly used in power supply applications requiring stable 5V output with minimal voltage drop.

Application Scenarios & Design Considerations

1A Low Dropout Regulator

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