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LP2981AIM5-2.9 from NS,National Semiconductor

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LP2981AIM5-2.9

Manufacturer: NS

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

Partnumber Manufacturer Quantity Availability
LP2981AIM5-2.9,LP2981AIM529 NS 23677 In Stock

Description and Introduction

Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD Packages The LP2981AIM5-2.9 is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments (formerly National Semiconductor, NS).  

### **Specifications:**  
- **Output Voltage:** Fixed 2.9V  
- **Output Current:** 150mA  
- **Dropout Voltage:** 300mV (typical) at full load  
- **Input Voltage Range:** Up to 16V  
- **Low Quiescent Current:** 75µA (typical)  
- **Low Shutdown Current:** <1µA  
- **Accuracy:** ±2% over line, load, and temperature  
- **Package:** SOT-23-5 (Miniature 5-Pin Package)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions:**  
The LP2981AIM5-2.9 is a precision LDO regulator designed for battery-powered applications requiring stable voltage with low quiescent current. It provides high PSRR (Power Supply Rejection Ratio) and low noise, making it suitable for noise-sensitive circuits.  

### **Features:**  
- Ultra-low dropout voltage  
- Stable with low-ESR ceramic capacitors  
- High PSRR (60dB at 1kHz)  
- Thermal shutdown and current limit protection  
- Low noise output  
- Fast transient response  

This regulator is commonly used in portable electronics, medical devices, and precision analog circuits.

Partnumber Manufacturer Quantity Availability
LP2981AIM5-2.9,LP2981AIM529 NSC 6500 In Stock

Description and Introduction

Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD Packages The LP2981AIM5-2.9 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 2.9V (fixed)  
- **Output Current:** 100mA  
- **Dropout Voltage:** 300mV (typical at full load)  
- **Input Voltage Range:** Up to 16V  
- **Low Quiescent Current:** 75µA (typical)  
- **Low Shutdown Current:** 0.01µA (typical)  
- **Package:** SOT-23-5  
- **Operating Temperature Range:** -40°C to +125°C  
- **Accuracy:** ±1.5% (over line, load, and temperature)  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions and Features:**  
- Designed for battery-powered applications requiring low quiescent current.  
- Stable with low-ESR ceramic capacitors (≥1µF).  
- Includes thermal shutdown and current limit protection.  
- Suitable for portable electronics, power-sensitive devices, and post-regulation for switching supplies.  
- No external components required for fixed-voltage operation.  

The LP2981AIM5-2.9 is optimized for efficiency and reliability in space-constrained applications.

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