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TL431AIZ-AP from ST,ST Microelectronics

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TL431AIZ-AP

Manufacturer: ST

PROGRAMMABLE VOLTAGE REFERENCE

Partnumber Manufacturer Quantity Availability
TL431AIZ-AP,TL431AIZAP ST 10000 In Stock

Description and Introduction

PROGRAMMABLE VOLTAGE REFERENCE The TL431AIZ-AP is a precision programmable shunt voltage reference manufactured by STMicroelectronics (ST).  

### **Specifications:**  
- **Reference Voltage:** 2.495V (typical)  
- **Voltage Range:** 2.5V to 36V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Output Current:** 1mA to 100mA  
- **Tolerance:** ±0.5%, ±1%, ±2% (depending on variant)  
- **Package:** TO-92 (3-pin)  
- **Cathode Current (IK):** 1mA (min) to 100mA (max)  
- **Low Dynamic Impedance:** 0.22Ω (typical)  

### **Description:**  
The TL431AIZ-AP is an adjustable precision shunt regulator that provides a stable reference voltage. It is commonly used in power supplies, battery chargers, and voltage monitoring circuits.  

### **Features:**  
- Adjustable output voltage with two external resistors  
- Low output noise  
- Wide operating current range (1mA to 100mA)  
- Stable over temperature variations  
- Low dynamic impedance  
- Available in multiple tolerance grades  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

PROGRAMMABLE VOLTAGE REFERENCE

Alternative Part Number

  • LM431AIZ --: Pin-compatible adjustable shunt regulator with similar 2.5V reference and tolerance grade, widely available and a direct functional substitute.
  • KA431AZ --: Industry-standard adjustable shunt regulator in TO-92 package, same function and pinout, suitable drop-in replacement for most TL431 applications.
  • AZ431AZ --: Adjustable precision shunt regulator with comparable reference voltage and TO-92 package, offering similar performance at competitive cost.

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