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LM2940CS-15 from NSC,National Semiconductor

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LM2940CS-15

Manufacturer: NSC

1A Low Dropout Regulator

Partnumber Manufacturer Quantity Availability
LM2940CS-15,LM2940CS15 NSC 6 In Stock

Description and Introduction

1A Low Dropout Regulator The LM2940CS-15 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NSC). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 15V (fixed)
- **Output Current:** Up to 1A
- **Dropout Voltage:** Typically 0.5V at full load (1A)
- **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 (D2PAK) surface-mount package

### **Descriptions:**
- The LM2940CS-15 is a fixed-output LDO regulator designed to provide a stable 15V output with low dropout voltage.
- It includes built-in protection features such as thermal shutdown and current limiting.
- Suitable for battery-powered applications due to its low quiescent current.

### **Features:**
- Low dropout voltage (0.5V typical at 1A load)
- Reverse battery protection
- Internal short-circuit current limiting
- Thermal shutdown protection
- High ripple rejection (75dB typical)
- Stable with low-ESR output capacitors (≥10µF)
- Lead-free and RoHS compliant

This regulator is commonly used in automotive, industrial, and consumer electronics applications requiring a stable 15V supply.

Application Scenarios & Design Considerations

1A Low Dropout Regulator

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