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LT1431-IZ from LT

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LT1431-IZ

Manufacturer: LT

Programmable Reference

Partnumber Manufacturer Quantity Availability
LT1431-IZ,LT1431IZ LT 540 In Stock

Description and Introduction

Programmable Reference The LT1431-IZ is a precision programmable shunt voltage reference manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Reference Voltage:** 2.5V (programmable via external resistors)  
- **Initial Accuracy:** ±0.4% (A-grade), ±0.25% (B-grade)  
- **Temperature Coefficient:** 10ppm/°C (typical)  
- **Operating Current Range:** 1mA to 100mA  
- **Output Voltage Range:** 2.5V to 36V (adjustable)  
- **Line Regulation:** 0.2mV/V (typical)  
- **Load Regulation:** 0.2Ω (typical dynamic impedance)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Lead SOIC (IZ suffix)  

### **Descriptions:**  
- The LT1431-IZ is a three-terminal adjustable shunt regulator with high precision and low drift.  
- It is commonly used in voltage regulation, switching power supplies, and precision voltage references.  
- The device can replace traditional Zener diodes with improved performance.  

### **Features:**  
- **High Accuracy:** Low initial error and temperature drift.  
- **Low Dynamic Impedance:** Ensures stable regulation.  
- **Wide Operating Range:** Supports up to 36V output.  
- **Adjustable Output:** Programmable via external resistors.  
- **Low Power Operation:** Works down to 1mA cathode current.  
- **Stable with Capacitive Loads:** No oscillation issues.  

For exact performance details, refer to the official datasheet from Analog Devices.

Application Scenarios & Design Considerations

Programmable Reference

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