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LP3985IM5X-4.7 from NSC,National Semiconductor

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LP3985IM5X-4.7

Manufacturer: NSC

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

Partnumber Manufacturer Quantity Availability
LP3985IM5X-4.7,LP3985IM5X47 NSC 31580 In Stock

Description and Introduction

Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator The LP3985IM5X-4.7 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NSC).  

**Key Specifications:**  
- **Output Voltage:** 4.7V (fixed)  
- **Output Current:** Up to 150mA  
- **Dropout Voltage:** 300mV (typical) at 150mA load  
- **Input Voltage Range:** 2.5V to 6.5V  
- **Low Quiescent Current:** 75µA (typical)  
- **High PSRR (Power Supply Rejection Ratio):** 65dB at 1kHz  
- **Package:** SOT-23-5  

**Features:**  
- Ultra-low dropout voltage  
- Low noise operation  
- Fast transient response  
- Thermal shutdown and current limit protection  
- Stable with low-ESR ceramic capacitors  

**Applications:**  
- Battery-powered devices  
- Portable electronics  
- Wireless communication systems  

This regulator is designed for space-constrained applications requiring stable voltage regulation with minimal power loss.

Partnumber Manufacturer Quantity Availability
LP3985IM5X-4.7,LP3985IM5X47 NS 92 In Stock

Description and Introduction

Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator The LP3985IM5X-4.7 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 4.7V (fixed)  
- **Output Current:** 150mA  
- **Dropout Voltage:** 300mV (typical at 150mA load)  
- **Input Voltage Range:** 2.5V to 6.5V  
- **Low Quiescent Current:** 75µA (typical)  
- **High PSRR:** 70dB at 1kHz  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5  

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

This regulator is commonly used in applications such as portable electronics, wireless devices, and power-sensitive embedded systems.

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