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TL431BCDBZR from TI,Texas Instruments

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TL431BCDBZR

Manufacturer: TI

Adjustable precision shunt regulator

Partnumber Manufacturer Quantity Availability
TL431BCDBZR TI 218000 In Stock

Description and Introduction

Adjustable precision shunt regulator The TL431BCDBZR is a programmable precision voltage reference manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Reference Voltage:** 2.495V (typical)  
- **Adjustable Output Voltage:** 2.5V to 36V  
- **Operating Current Range:** 1mA to 100mA  
- **Temperature Stability:** ±4mV (0°C to 70°C)  
- **Output Impedance:** 0.2Ω (typical)  
- **Sink Current Capability:** 1mA to 100mA  
- **Package Type:** SOT-23 (DBZ)  
- **Operating Temperature Range:** 0°C to 70°C  

### **Descriptions:**  
The TL431BCDBZR is a three-terminal adjustable shunt regulator with thermal stability. It provides precise voltage references and can be used in applications such as 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)  
- **Low Dynamic Output Impedance**  
- **Fast Turn-On Response**  
- **Available in SOT-23 Package** for space-constrained applications  

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

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Application Scenarios & Design Considerations

Adjustable precision shunt regulator

Alternative Part Number

  • LM431BCM3 --: Pin-compatible adjustable shunt regulator with similar 2.5V reference and 1% tolerance, widely available and functionally equivalent.
  • KA431AZ --: Industry-standard adjustable shunt regulator with comparable reference voltage and tolerance, suitable drop-in replacement in most TL431 applications.
  • AZ431AN-B --: Low-cost adjustable precision shunt regulator with 2.5V reference and 1% tolerance, offering similar electrical performance for voltage reference and regulation circuits.

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