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LP3984IBPX-1.8 from NSC,National Semiconductor

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LP3984IBPX-1.8

Manufacturer: NSC

Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package

Partnumber Manufacturer Quantity Availability
LP3984IBPX-1.8,LP3984IBPX18 NSC 1570 In Stock

Description and Introduction

Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package The LP3984IBPX-1.8 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 1.8V (fixed)  
- **Output Current:** 300mA  
- **Dropout Voltage:** 300mV (typical at 300mA load)  
- **Input Voltage Range:** 2.5V to 6.5V  
- **Quiescent Current:** 75µA (typical)  
- **Package:** SOT-23-5  
- **Operating Temperature Range:** -40°C to +125°C  
- **Line Regulation:** 0.02%/V (typical)  
- **Load Regulation:** 0.1% (typical)  
- **PSRR (Power Supply Rejection Ratio):** 70dB at 1kHz  

### **Descriptions and Features:**  
- Ultra-low dropout voltage for extended battery life.  
- Low quiescent current for power-sensitive applications.  
- Stable with low-ESR ceramic capacitors (≥1µF).  
- Thermal shutdown and current limit protection.  
- Fast transient response for dynamic loads.  
- Designed for portable and battery-powered devices.  

This regulator is commonly used in applications such as smartphones, portable electronics, and embedded systems requiring a stable 1.8V supply.

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