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TL431IP from TI,Texas Instruments

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TL431IP

Manufacturer: TI

PROGRAMMABLE PRECISION REFERENCES

Partnumber Manufacturer Quantity Availability
TL431IP TI 989 In Stock

Description and Introduction

PROGRAMMABLE PRECISION REFERENCES The TL431IP is a programmable precision shunt regulator manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Output Voltage Range:** 2.495V to 36V (adjustable)  
- **Reference Voltage:** 2.495V (typical)  
- **Operating Current Range:** 1mA to 100mA  
- **Tolerance:** 0.5%, 1%, or 2% (depending on variant)  
- **Temperature Stability:** Typically 6mV over full temperature range  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** PDIP-8 (Plastic Dual In-Line Package)  

### **Descriptions:**  
- The TL431IP is a three-terminal adjustable shunt regulator with thermal stability.  
- It provides precise voltage references and can be used in switching power supplies, battery chargers, and voltage monitoring circuits.  
- The device operates as a low-temperature-coefficient Zener diode with programmable voltage.  

### **Features:**  
- **Adjustable Output Voltage** via external resistors  
- **Low Dynamic Output Impedance** (0.22Ω typical)  
- **Sink Current Capability** up to 100mA  
- **Low Output Noise**  
- **Wide Operating Temperature Range**  
- **Available in Multiple Tolerance Grades**  

For exact datasheet details, refer to the official TI documentation.

Application Scenarios & Design Considerations

PROGRAMMABLE PRECISION REFERENCES

Alternative Part Number

  • KA431AZ --: Industry-standard adjustable shunt regulator equivalent to TL431 with similar voltage reference tolerance and current capability, widely available and pin-compatible in TO-92.
  • LM431ACZ --: Direct functional equivalent adjustable precision shunt regulator from the same manufacturer, offering comparable reference voltage and tolerance in a TO-92 package.
  • AS431ANTR-G1 --: Adjustable shunt regulator with equivalent electrical characteristics and pinout, suitable drop-in replacement for TL431 in most applications.

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