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LM2990S-5.0 from NSC,National Semiconductor

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LM2990S-5.0

Manufacturer: NSC

Negative Low Dropout Regulator

Partnumber Manufacturer Quantity Availability
LM2990S-5.0,LM2990S50 NSC 576 In Stock

Description and Introduction

Negative Low Dropout Regulator The LM2990S-5.0 is a negative low-dropout voltage regulator manufactured by National Semiconductor (NSC). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** -5.0V  
- **Output Current:** 1A  
- **Dropout Voltage:** 0.6V (typical at full load)  
- **Input Voltage Range:** -5.6V to -26V  
- **Line Regulation:** 0.01%/V (typical)  
- **Load Regulation:** 0.3% (typical)  
- **Quiescent Current:** 10mA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263 (SMD)  

### **Descriptions:**
- The LM2990S-5.0 is a fixed-output negative voltage regulator designed for applications requiring a stable -5V supply.  
- It features low dropout voltage, making it suitable for battery-powered systems.  
- Includes built-in thermal shutdown and current limit protection.  

### **Features:**
- **Low Dropout Voltage:** Ensures efficient regulation even with small input-output differentials.  
- **Thermal Shutdown Protection:** Prevents damage from excessive heat.  
- **Current Limit Protection:** Safeguards against short circuits and overloads.  
- **Stable with Low-ESR Capacitors:** Works reliably with ceramic or tantalum output capacitors.  
- **High Accuracy:** Tight output voltage tolerance ensures consistent performance.  

This regulator is commonly used in industrial, automotive, and instrumentation applications requiring a regulated negative voltage supply.

Application Scenarios & Design Considerations

Negative Low Dropout Regulator

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