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LP3985IBP-3.0 from NS,National Semiconductor

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LP3985IBP-3.0

Manufacturer: NS

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

Partnumber Manufacturer Quantity Availability
LP3985IBP-3.0,LP3985IBP30 NS 14930 In Stock

Description and Introduction

Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator The LP3985IBP-3.0 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NS).  

### **Key Specifications:**  
- **Output Voltage:** 3.0V (fixed)  
- **Output Current:** 150mA  
- **Dropout Voltage:** 120mV (typical) at 100mA load  
- **Input Voltage Range:** 2.5V to 6.0V  
- **Low Quiescent Current:** 75µA (typical)  
- **High PSRR:** 70dB at 1kHz  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5  

### **Features:**  
- Ultra-low dropout voltage  
- Low noise operation  
- Stable with low-ESR ceramic capacitors (≥1µF)  
- Thermal shutdown and current limit protection  
- Fast transient response  
- RoHS compliant  

This regulator is designed for battery-powered applications, portable devices, and noise-sensitive circuits.

Partnumber Manufacturer Quantity Availability
LP3985IBP-3.0,LP3985IBP30 NSC 11560 In Stock

Description and Introduction

Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator The LP3985IBP-3.0 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NSC). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 3.0V (fixed)  
- **Output Current:** 150mA  
- **Dropout Voltage:** 300mV (typical at full load)  
- **Input Voltage Range:** 2.5V to 6.0V  
- **Line Regulation:** 0.02%/V (typical)  
- **Load Regulation:** 0.1% (typical)  
- **Quiescent Current:** 75µA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5  

### **Descriptions:**
- The LP3985IBP-3.0 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).  
- The device includes overcurrent and thermal protection.  

### **Features:**
- Low dropout voltage (300mV typical at full load)  
- Ultra-low quiescent current (75µA typical)  
- High PSRR (60dB at 1kHz)  
- Stable with low-ESR ceramic capacitors (≥1µF)  
- Thermal shutdown and current limit protection  
- Fast transient response  
- RoHS-compliant  

This information is based on the manufacturer's datasheet. For detailed electrical characteristics and application notes, refer to the official NSC documentation.

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