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LP2957AIT from NSC,National Semiconductor

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LP2957AIT

Manufacturer: NSC

5V Low-Dropout Regulator for micro-P Application

Partnumber Manufacturer Quantity Availability
LP2957AIT NSC 1258 In Stock

Description and Introduction

5V Low-Dropout Regulator for micro-P Application The LP2957AIT is a low-dropout voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage Options:** 5V (fixed) or adjustable (1.23V to 29V)  
- **Output Current:** Up to 500mA  
- **Dropout Voltage:** 380mV (typical at 500mA load)  
- **Input Voltage Range:** Up to 30V  
- **Low Quiescent Current:** 1.1mA (typical)  
- **Low Shutdown Current:** 50µA (typical)  
- **Line Regulation:** 0.04% (typical)  
- **Load Regulation:** 0.05% (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220 (5-pin)  

### **Descriptions and Features:**  
- Designed for battery-powered applications requiring low dropout voltage.  
- Includes **thermal shutdown** and **current limit protection** for safe operation.  
- **Adjustable version** allows setting output voltage via external resistors.  
- Stable with low-ESR capacitors (≥1µF).  
- **Low noise** performance suitable for sensitive analog circuits.  
- **Enable pin** (shutdown control) for power management.  

This regulator is commonly used in automotive, industrial, and portable electronics.

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