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TL431BIDCKR from TI,Texas Instruments

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TL431BIDCKR

Manufacturer: TI

ADJUSTABLE PRECISION SHUNT REGULATORS

Partnumber Manufacturer Quantity Availability
TL431BIDCKR TI 218000 In Stock

Description and Introduction

ADJUSTABLE PRECISION SHUNT REGULATORS The TL431BIDCKR is a three-terminal adjustable precision shunt regulator manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Output Voltage Range:** 2.495V to 36V  
- **Reference Voltage:** 2.495V (typical)  
- **Output Current:** 1mA to 100mA  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SC-70 (SOT-523)  
- **Tolerance:** 0.5%, 1%, and 2% (depending on variant)  
- **Low Output Noise**  
- **Low Dynamic Output Impedance:** 0.2Ω (typical)  

### **Descriptions:**  
The TL431BIDCKR is a precision voltage reference with an integrated comparator and output driver, allowing it to function as a shunt regulator. It is commonly used in power supply feedback circuits, voltage monitoring, and precision voltage regulation.  

### **Features:**  
- Adjustable output voltage with two external resistors  
- Low temperature drift  
- Fast turn-on response  
- Stable with capacitive loads  
- Available in multiple tolerance grades (0.5%, 1%, 2%)  
- RoHS compliant and lead-free  

This information is sourced from the official Texas Instruments datasheet.

Application Scenarios & Design Considerations

ADJUSTABLE PRECISION SHUNT REGULATORS

Alternative Part Number

  • LM431BIM3 --: Pin-compatible adjustable shunt regulator with similar 0.5% reference tolerance, widely available and a direct functional substitute for TL431B in SOT-23 packages.
  • KA431AZ --: Industry-standard adjustable shunt regulator equivalent to TL431, offering comparable voltage reference accuracy and current capability in a TO-92 package.
  • AS431ANTR --: Low-cost adjustable precision shunt regulator with similar electrical characteristics to TL431B, suitable for voltage reference and regulation applications.

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