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LP3891ES-1.2 from NS,National Semiconductor

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46.875ms

LP3891ES-1.2

Manufacturer: NS

0.8A Fast-Response Ultra Low Dropout Linear Regulators

Partnumber Manufacturer Quantity Availability
LP3891ES-1.2,LP3891ES12 NS 11 In Stock

Description and Introduction

0.8A Fast-Response Ultra Low Dropout Linear Regulators The LP3891ES-1.2 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NS). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 1.2V (fixed)  
- **Output Current:** 500mA  
- **Dropout Voltage:** 250mV (typical at 500mA)  
- **Input Voltage Range:** 2.5V to 6.0V  
- **Quiescent Current:** 75µA (typical)  
- **Line Regulation:** 0.05%/V (typical)  
- **Load Regulation:** 0.1%/A (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-223  

### **Descriptions:**
- The LP3891ES-1.2 is a high-performance LDO regulator designed for low-power applications.  
- It provides stable voltage output with low noise and high accuracy.  
- Suitable for battery-powered devices, portable electronics, and embedded systems.  

### **Features:**
- **Low Dropout Voltage:** Ensures efficient operation even with small input-output differentials.  
- **Low Quiescent Current:** Extends battery life in portable applications.  
- **Thermal Shutdown Protection:** Prevents damage due to overheating.  
- **Short-Circuit Protection:** Safeguards the regulator and load.  
- **Fast Transient Response:** Maintains stable output under varying load conditions.  
- **No External Components Required:** Simplifies circuit design (only input/output capacitors needed).  

This information is based on the manufacturer's datasheet for the LP3891ES-1.2.

Partnumber Manufacturer Quantity Availability
LP3891ES-1.2,LP3891ES12 NSC 2880 In Stock

Description and Introduction

0.8A Fast-Response Ultra Low Dropout Linear Regulators The LP3891ES-1.2 is a low-dropout (LDO) voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 1.2V (fixed)  
- **Output Current:** Up to 1A  
- **Dropout Voltage:** Typically 300mV at full load  
- **Input Voltage Range:** 2.5V to 6V  
- **Line Regulation:** 0.05% typical  
- **Load Regulation:** 0.1% typical  
- **Quiescent Current:** 85µA typical  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-223 (Surface Mount)  

### **Descriptions & Features:**  
- **Low Dropout:** Optimized for battery-powered applications.  
- **Low Quiescent Current:** Enhances efficiency in portable devices.  
- **Thermal & Overcurrent Protection:** Prevents damage from excessive heat or current.  
- **Stable with Low-ESR Capacitors:** Works with ceramic or tantalum output capacitors.  
- **Fast Transient Response:** Suitable for dynamic load conditions.  

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

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