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LP3981ILD-2.5 from NS,National Semiconductor

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LP3981ILD-2.5

Manufacturer: NS

Micropower, 300mA Ultra Low-Dropout CMOS Voltage Regulator

Partnumber Manufacturer Quantity Availability
LP3981ILD-2.5,LP3981ILD25 NS 1547 In Stock

Description and Introduction

Micropower, 300mA Ultra Low-Dropout CMOS Voltage Regulator The LP3981ILD-2.5 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features based on factual data:

### **Specifications:**
- **Output Voltage:** 2.5V (Fixed)  
- **Output Current:** 300mA  
- **Dropout Voltage:** 250mV (Typical at 300mA)  
- **Input Voltage Range:** 2.7V to 6V  
- **Line Regulation:** 0.05% (Typical)  
- **Load Regulation:** 0.1% (Typical)  
- **Quiescent Current:** 75µA (Typical)  
- **Package Type:** SOT-23-5  
- **Operating Temperature Range:** -40°C to +125°C  

### **Descriptions:**
The LP3981ILD-2.5 is a high-performance LDO regulator designed for battery-powered applications. It provides a stable 2.5V output with low noise and high PSRR (Power Supply Rejection Ratio). The device is optimized for low dropout and low quiescent current, making it suitable for portable electronics.  

### **Features:**
- **Low Dropout Voltage:** 250mV at 300mA  
- **Ultra-Low Quiescent Current:** 75µA (Typical)  
- **High PSRR:** 75dB at 1kHz  
- **Thermal and Overcurrent Protection**  
- **Stable with Low-ESR Ceramic Capacitors**  
- **Fast Transient Response**  
- **SOT-23-5 Package for Space-Constrained Applications**  

This information is based on the manufacturer's datasheet for the LP3981ILD-2.5.

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