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LP2981AIM5X-3.1 from NSC,National Semiconductor

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LP2981AIM5X-3.1

Manufacturer: NSC

Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD Packages

Partnumber Manufacturer Quantity Availability
LP2981AIM5X-3.1,LP2981AIM5X31 NSC 32853 In Stock

Description and Introduction

Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD Packages The **LP2981AIM5X-3.1** is a low-dropout (LDO) voltage regulator manufactured by **NSC (National Semiconductor Corporation)**. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Output Voltage:** 3.1V (fixed)  
- **Output Current:** 100mA  
- **Dropout Voltage:** 300mV (typical at 100mA load)  
- **Input Voltage Range:** 2.5V to 16V  
- **Quiescent Current:** 75µA (typical)  
- **Line Regulation:** 0.02% (typical)  
- **Load Regulation:** 0.05% (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5  

### **Descriptions:**  
- The LP2981AIM5X-3.1 is a **precision, low-noise, low-dropout regulator** designed for battery-powered applications.  
- It provides a **fixed 3.1V output** with high accuracy (±1%).  
- Features **low quiescent current**, making it suitable for power-sensitive designs.  
- Includes **thermal shutdown and current limit protection** for enhanced reliability.  

### **Features:**  
- **Low Dropout Voltage:** 300mV at 100mA load  
- **Low Noise Output:** Optimized for noise-sensitive applications  
- **Thermal Shutdown Protection:** Prevents overheating  
- **Current Limit Protection:** Safeguards against excessive current draw  
- **Stable with Low-ESR Capacitors:** Works with ceramic capacitors (≥1µF)  
- **Wide Input Voltage Range:** 2.5V to 16V  
- **Low Quiescent Current:** 75µA (typical)  

This regulator is commonly used in **portable electronics, battery-powered devices, and noise-sensitive applications** such as RF circuits and precision analog systems.

Partnumber Manufacturer Quantity Availability
LP2981AIM5X-3.1,LP2981AIM5X31 NS 30000 In Stock

Description and Introduction

Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD Packages The LP2981AIM5X-3.1 is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (formerly National Semiconductor, NS).  

### **Specifications:**  
- **Output Voltage:** 3.1V (fixed)  
- **Output Current:** 100mA  
- **Dropout Voltage:** 300mV (typical at 100mA load)  
- **Input Voltage Range:** 2.5V to 16V  
- **Low Quiescent Current:** 75µA (typical)  
- **Low Shutdown Current:** <1µA  
- **Accuracy:** ±1.5% (over line, load, and temperature)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5  

### **Descriptions:**  
- The LP2981AIM5X-3.1 is a high-performance LDO regulator designed for battery-powered applications.  
- It features ultra-low dropout, low noise, and excellent line/load regulation.  
- Includes built-in protection features such as thermal shutdown and current limit.  

### **Features:**  
- **Ultra-Low Dropout:** Ensures stable operation even with small input-output differentials.  
- **Low Noise:** Optimized for noise-sensitive applications.  
- **Stable with Low-ESR Capacitors:** Works with ceramic capacitors (≥1µF).  
- **Thermal Shutdown & Current Limit Protection:** Safeguards against overheating and overcurrent conditions.  
- **Fast Transient Response:** Suitable for dynamic load conditions.  

This regulator is commonly used in portable electronics, battery-powered devices, and noise-sensitive applications.

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