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LP3985IBLX-3.3 from NSC,National Semiconductor

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LP3985IBLX-3.3

Manufacturer: NSC

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

Partnumber Manufacturer Quantity Availability
LP3985IBLX-3.3,LP3985IBLX33 NSC 45000 In Stock

Description and Introduction

Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator The LP3985IBLX-3.3 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Output Current:** 150mA  
- **Dropout Voltage:** 300mV (typical at full load)  
- **Input Voltage Range:** 2.5V to 6V  
- **Low Quiescent Current:** 75µA (typical)  
- **High PSRR:** 60dB at 1kHz  
- **Low Noise:** 30µVRMS (typical)  
- **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.  
- Fast transient response.  
- Designed for portable and battery-powered applications.  

This regulator is suitable for powering microcontrollers, RF modules, and other low-power devices requiring a stable 3.3V supply.

Partnumber Manufacturer Quantity Availability
LP3985IBLX-3.3,LP3985IBLX33 NSC 820 In Stock

Description and Introduction

Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator The LP3985IBLX-3.3 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Output Current:** 150mA  
- **Dropout Voltage:** 130mV (typical) at 100mA load  
- **Input Voltage Range:** 2.5V to 6.5V  
- **Low Quiescent Current:** 75µA (typical)  
- **High PSRR:** 70dB at 1kHz  
- **Low Noise:** 30µVRMS (10Hz to 100kHz)  
- **Thermal Shutdown Protection:** Yes  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5  

### **Descriptions & Features:**  
- Ultra-low dropout voltage for extended battery life.  
- Stable with low-ESR ceramic capacitors (≥1µF).  
- Fast transient response for portable applications.  
- Built-in thermal shutdown and current limit protection.  
- Optimized for battery-powered devices like smartphones, PDAs, and wireless modules.  
- RoHS-compliant and lead-free.  

This regulator is designed for space-constrained applications requiring high efficiency and reliability.

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