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LP2981AIBPX-3.3 from NATIONAL,National Semiconductor

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LP2981AIBPX-3.3

Manufacturer: NATIONAL

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

Partnumber Manufacturer Quantity Availability
LP2981AIBPX-3.3,LP2981AIBPX33 NATIONAL 9000 In Stock

Description and Introduction

Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD Packages The LP2981AIBPX-3.3 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (now part of Texas Instruments).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 2.5V to 16V  
- **Dropout Voltage:** 300mV (typical at 100mA load)  
- **Output Current:** 100mA  
- **Accuracy:** ±1.5% (over line, load, and temperature)  
- **Quiescent Current:** 75µA (typical)  
- **Low Noise:** 30µV RMS (10Hz to 100kHz)  
- **Package:** SOT-23-5  
- **Operating Temperature Range:** -40°C to +125°C  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions:**  
The LP2981AIBPX-3.3 is a high-performance LDO regulator designed for battery-powered applications. It provides a stable 3.3V output with very low dropout voltage, making it suitable for systems where input voltage is close to the output voltage.  

### **Features:**  
- Ultra-low dropout voltage  
- Low quiescent current for extended battery life  
- Stable with low-ESR ceramic capacitors  
- Thermal shutdown and current limit protection  
- Low noise output for sensitive analog circuits  
- Fast transient response  

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

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