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TL431BCDBZT from TI,Texas Instruments

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TL431BCDBZT

Manufacturer: TI

Adjustable Precision Shunt Regulator

Partnumber Manufacturer Quantity Availability
TL431BCDBZT TI 45417 In Stock

Description and Introduction

Adjustable Precision Shunt Regulator The TL431BCDBZT is a precision programmable shunt regulator manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Output Voltage Range:** 2.495V to 36V (adjustable)  
- **Reference Voltage:** 2.495V (typical)  
- **Operating Current (Cathode):** 1mA to 100mA  
- **Temperature Stability:** ±4mV (typical) over full temperature range  
- **Output Impedance:** 0.2Ω (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23 (DBZ)  

### **Descriptions:**  
The TL431BCDBZT is a three-terminal adjustable shunt regulator with thermal stability. It provides precise voltage references and can be used in switching power supplies, voltage monitoring, and error amplifiers.  

### **Features:**  
- **Adjustable Output Voltage** with two external resistors  
- **Low Dynamic Output Impedance** (0.2Ω typical)  
- **Sink Current Capability:** 1mA to 100mA  
- **Low Output Noise Voltage**  
- **Wide Operating Temperature Range** (-40°C to +125°C)  
- **Available in SOT-23 Package** for space-constrained applications  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Adjustable Precision Shunt Regulator

Alternative Part Number

  • LM431BCM3/NOPB --: Adjustable shunt voltage reference with 1% tolerance in SOT-23, functionally equivalent to the TL431B and pin-compatible in most designs.
  • KA431AZBU --: Industry-standard adjustable shunt regulator with 1% reference tolerance, widely used as a TL431 drop-in replacement in SOT-23 packages.
  • AS431ANTR-G1 --: Low-cost adjustable precision shunt reference with 1% tolerance in SOT-23, suitable as a direct TL431B substitute.
  • LM431BCM3 --: Adjustable shunt regulator in SOT-23 with 1% tolerance, functionally equivalent to the TL431 and pin-compatible in most designs.
  • KA431AZ --: Classic TL431-equivalent adjustable shunt reference with similar voltage tolerance and current capability, widely used as a drop-in replacement.
  • AS431ANTR --: Low-cost adjustable shunt regulator offering comparable reference voltage and cathode current ratings, suitable for TL431 replacement in SOT-23 packages.

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