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LP3985IBPX-2.8 from NS,National Semiconductor

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LP3985IBPX-2.8

Manufacturer: NS

Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator

Partnumber Manufacturer Quantity Availability
LP3985IBPX-2.8,LP3985IBPX28 NS 93000 In Stock

Description and Introduction

Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator The LP3985IBPX-2.8 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NS). Here are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 2.8V (fixed)  
- **Output Current:** 150mA  
- **Dropout Voltage:** 120mV (typical at 100mA load)  
- **Input Voltage Range:** 2.5V to 6.0V  
- **Line Regulation:** 0.02%/V (typical)  
- **Load Regulation:** 0.05%/mA (typical)  
- **Quiescent Current:** 75µA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5  

### **Descriptions:**
- The LP3985 is a high-performance LDO regulator designed for battery-powered applications.  
- It provides stable voltage regulation with low noise and high PSRR (Power Supply Rejection Ratio).  
- Features thermal shutdown and current limit protection.  

### **Features:**
- **Ultra-Low Dropout Voltage** (120mV typical at 100mA load).  
- **Low Quiescent Current** (75µA typical).  
- **High PSRR** (60dB at 1kHz).  
- **Thermal Shutdown & Current Limit Protection.**  
- **Stable with Low-ESR Ceramic Capacitors** (≥1µF).  
- **Fast Transient Response.**  
- **RoHS Compliant & Lead-Free.**  

This information is based on the manufacturer's datasheet.

Partnumber Manufacturer Quantity Availability
LP3985IBPX-2.8,LP3985IBPX28 NATIONAL 93000 In Stock

Description and Introduction

Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator The LP3985IBPX-2.8 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (now part of Texas Instruments).  

### **Specifications:**  
- **Output Voltage:** 2.8V (fixed)  
- **Output Current:** 150mA  
- **Dropout Voltage:** 300mV (typical at full load)  
- **Input Voltage Range:** 2.5V to 6.0V  
- **Low Quiescent Current:** 75µA (typical)  
- **High PSRR:** 60dB at 1kHz  
- **Package:** SOT-23-5  
- **Operating Temperature Range:** -40°C to +125°C  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions and Features:**  
- Ultra-low dropout voltage for improved efficiency.  
- Stable with low-ESR ceramic capacitors (≥1µF).  
- Low noise and high PSRR for sensitive applications.  
- Designed for battery-powered and portable devices.  
- Thermal shutdown and current limit protection ensure reliability.  
- Small SOT-23-5 package for space-constrained designs.  

This LDO is commonly used in power management for portable electronics, wireless devices, and embedded systems.

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