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LM2940S-9.0 from NSC质量第一,National Semiconductor

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LM2940S-9.0

Manufacturer: NSC质量第一

1A Low Dropout Regulator

Partnumber Manufacturer Quantity Availability
LM2940S-9.0,LM2940S90 NSC质量第一 1000 In Stock

Description and Introduction

1A Low Dropout Regulator The LM2940S-9.0 is a low-dropout voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 9.0V  
- **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-263 (SMD)  

### **Descriptions and Features:**  
- Designed for low-dropout applications  
- Includes internal current limiting and thermal shutdown protection  
- Stable with low-ESR output capacitors (≥10µF)  
- Suitable for battery-powered and automotive applications  
- Reverse-battery protection (with external diode)  
- Low quiescent current in standby mode  

This regulator is commonly used in power supply circuits requiring stable 9V output with minimal voltage drop.

Application Scenarios & Design Considerations

1A Low Dropout Regulator
Partnumber Manufacturer Quantity Availability
LM2940S-9.0,LM2940S90 NS 68 In Stock

Description and Introduction

1A Low Dropout Regulator The LM2940S-9.0 is a low-dropout voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Output Voltage:** 9.0V  
- **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 LM2940S-9.0 is a fixed-output, low-dropout (LDO) voltage regulator designed to provide a stable 9.0V output with high efficiency. It is suitable for battery-powered applications due to its low dropout voltage and low quiescent current.  

### **Features:**  
- Low dropout voltage (0.5V typical at full load)  
- Internal current and thermal limiting  
- Reverse battery protection  
- Internal short-circuit protection  
- High ripple rejection ratio  
- Available in surface-mount (TO-263) package  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

1A Low Dropout Regulator

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