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LP3986BLX-2828 from FAIRCHILD,Fairchild Semiconductor

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LP3986BLX-2828

Manufacturer: FAIRCHILD

Dual Micropower 150 mA Ultra Low-Dropout CMOS Voltage Regulators in micro SMD Package

Partnumber Manufacturer Quantity Availability
LP3986BLX-2828,LP3986BLX2828 FAIRCHILD 3000 In Stock

Description and Introduction

Dual Micropower 150 mA Ultra Low-Dropout CMOS Voltage Regulators in micro SMD Package The LP3986BLX-2828 is a low-dropout (LDO) voltage regulator manufactured by Fairchild Semiconductor (now part of ON Semiconductor). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Output Voltage:** 2.8V (fixed)  
- **Output Current:** 300mA  
- **Dropout Voltage:** 300mV (typical at 300mA load)  
- **Input Voltage Range:** 2.5V to 6.0V  
- **Line Regulation:** 0.05% (typical)  
- **Load Regulation:** 0.1% (typical)  
- **Quiescent Current:** 75µA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5  

### **Descriptions:**  
- The LP3986BLX-2828 is a high-performance LDO regulator designed for battery-powered and portable applications.  
- It provides stable voltage regulation with low noise and high PSRR (Power Supply Rejection Ratio).  
- Includes built-in protection features such as current limit and thermal shutdown.  

### **Features:**  
- **Low Dropout Voltage:** Ensures efficient operation even with small input-output differentials.  
- **Low Quiescent Current:** Extends battery life in portable devices.  
- **Fast Transient Response:** Suitable for applications with dynamic load changes.  
- **Thermal Shutdown & Current Limit Protection:** Enhances reliability under fault conditions.  
- **Stable with Low-ESR Ceramic Capacitors:** Reduces external component count and board space.  

This regulator is commonly used in mobile devices, wireless communication systems, and other power-sensitive electronics.  

(Note: Fairchild Semiconductor was acquired by ON Semiconductor in 2016, but legacy part numbers like LP3986BLX-2828 may still be referenced under the original manufacturer name.)

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