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TL431BCDBVT from TI,Texas Instruments

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TL431BCDBVT

Manufacturer: TI

Adjustable Precision Shunt Regulator

Partnumber Manufacturer Quantity Availability
TL431BCDBVT TI 7551 In Stock

Description and Introduction

Adjustable Precision Shunt Regulator The TL431BCDBVT is a programmable precision voltage reference manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Reference Voltage:** 2.495V (Typical)  
- **Adjustable Output Voltage Range:** 2.5V to 36V  
- **Operating Cathode Current Range:** 1mA to 100mA  
- **Reference Voltage Tolerance:** ±0.5%, ±1%, ±2% (depending on variant)  
- **Temperature Stability:** 6mV (Typical over full temperature range)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** SOT-23-5 (DBV)  

### **Descriptions:**  
The TL431BCDBVT is a three-terminal adjustable shunt regulator with thermal stability. It provides precise voltage references for applications such as power supplies, battery chargers, and voltage monitoring circuits.  

### **Features:**  
- **Adjustable Output Voltage** via external resistors  
- **Low Dynamic Output Impedance:** 0.2Ω (Typical)  
- **Sink Current Capability:** Up to 100mA  
- **Low Output Noise**  
- **Wide Operating Temperature Range**  
- **Available in Small SOT-23 Package**  

This device is commonly used in switching power supplies, precision regulators, and voltage comparators.  

(Source: Texas Instruments Datasheet)

Application Scenarios & Design Considerations

Adjustable Precision Shunt Regulator

Alternative Part Number

  • LM431BCM3 --: Adjustable shunt regulator in SOT-23 with similar 1% tolerance and pinout, direct functional replacement for TL431.
  • KA431AZ --: Industry-standard adjustable shunt regulator, TO-92 package, widely used as TL431 equivalent with comparable reference voltage and tolerance.
  • AS431ANTR --: Low-cost adjustable shunt regulator in SOT-23, functionally compatible with TL431 with similar voltage reference and current capability.
  • KA431AZBU --: Industry-standard adjustable shunt reference with similar voltage reference and tolerance, widely used as a TL431 replacement.
  • AS431ANTR-G1 --: Low-cost adjustable shunt regulator in SOT-23 offering comparable reference voltage and current capability for TL431 applications.

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