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LM2940CT from National,National Semiconductor

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LM2940CT

Manufacturer: National

1A Low Dropout Regulator

Partnumber Manufacturer Quantity Availability
LM2940CT National 595 In Stock

Description and Introduction

1A Low Dropout Regulator The LM2940CT is a low-dropout voltage regulator manufactured by National Semiconductor (now part of Texas Instruments). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Output Voltage Options:** 5V, 8V, 10V, 12V, 15V (fixed)  
- **Output Current:** 1A  
- **Dropout Voltage:** Typically 0.5V (max 1V at full load)  
- **Input Voltage Range:** Up 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:** TO-220  

### **Descriptions:**
- The LM2940CT is a positive voltage regulator designed to provide a stable output voltage with low dropout, making it suitable for battery-powered applications.  
- It includes built-in protection features such as thermal shutdown and current limiting.  
- The regulator is designed for use in automotive, industrial, and consumer electronics applications.  

### **Features:**
- **Low Dropout Voltage:** Ensures efficient operation even when the input voltage is close to the output voltage.  
- **Reverse Battery Protection:** Can withstand reverse polarity conditions.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Short-Circuit Protection:** Includes internal current limiting.  
- **Low Quiescent Current:** Helps conserve power in battery-operated systems.  
- **Stable with Low-ESR Capacitors:** Works reliably with inexpensive capacitors.  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

1A Low Dropout Regulator
Partnumber Manufacturer Quantity Availability
LM2940CT 93 In Stock

Description and Introduction

1A Low Dropout Regulator The LM2940CT is a low-dropout voltage regulator manufactured by Texas Instruments. Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Output Voltage Options:** 5V, 8V, 10V, 12V, 15V (fixed output versions).  
- **Output Current:** Up to 1A.  
- **Dropout Voltage:** Typically 0.5V at full load.  
- **Input Voltage Range:** Up to 26V.  
- **Line Regulation:** 0.3% (typical).  
- **Load Regulation:** 0.4% (typical).  
- **Operating Temperature Range:** -40°C to +125°C.  
- **Package Type:** TO-220 (LM2940CT).  

### **Descriptions:**  
- The LM2940CT is a positive voltage regulator designed to provide a stable output voltage with low dropout, making it suitable for battery-powered applications.  
- It includes built-in protection features such as thermal shutdown and current limiting.  
- The device is optimized for low quiescent current, improving efficiency in portable electronics.  

### **Features:**  
- Low dropout voltage (0.5V typical at full load).  
- Reverse battery protection.  
- Internal short-circuit current limit.  
- Thermal shutdown protection.  
- Low quiescent current in standby mode.  
- Available in fixed and adjustable output versions.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

1A Low Dropout Regulator
Partnumber Manufacturer Quantity Availability
LM2940CT NS 177 In Stock

Description and Introduction

1A Low Dropout Regulator The LM2940CT is a low dropout voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Output Voltage Options:** 5V, 8V, 9V, 10V, 12V, 15V (fixed)  
- **Output Current:** 1A  
- **Dropout Voltage:** Typically 0.5V (at full load)  
- **Input Voltage Range:** Up 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:** TO-220  

### **Descriptions:**  
The LM2940CT is a positive voltage regulator designed to provide a stable output voltage with low dropout, making it suitable for battery-powered applications. It includes built-in protection features such as thermal shutdown and current limiting.  

### **Features:**  
- Low dropout voltage (0.5V typical at 1A)  
- Reverse battery protection  
- Internal short-circuit current limiting  
- Thermal shutdown protection  
- High ripple rejection (75dB typical)  
- Available in fixed output voltage versions  

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

Application Scenarios & Design Considerations

1A Low Dropout Regulator

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