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TL431BID from MOTOROLA

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TL431BID

Manufacturer: MOTOROLA

PROGRAMMABLE PRECISION REFERENCES

Partnumber Manufacturer Quantity Availability
TL431BID MOTOROLA 466 In Stock

Description and Introduction

PROGRAMMABLE PRECISION REFERENCES The TL431BID is a programmable precision reference manufactured by Motorola.  

### **Specifications:**  
- **Type:** Adjustable Precision Shunt Regulator  
- **Reference Voltage:** 2.495V (Typical)  
- **Voltage Range:** 2.5V to 36V  
- **Output Current:** 1mA to 100mA  
- **Temperature Stability:** ±4mV (0°C to 70°C)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The TL431BID is a three-terminal adjustable shunt regulator with thermal stability over the operating temperature range. It is commonly used in switching power supplies, voltage references, and error amplifiers.  

### **Features:**  
- Adjustable output voltage with two external resistors  
- Low dynamic output impedance (0.22Ω typical)  
- Sink current capability of 1mA to 100mA  
- Low output noise  
- Fast turn-on response  

This device is widely used in power management and precision voltage regulation applications.

Application Scenarios & Design Considerations

PROGRAMMABLE PRECISION REFERENCES

Alternative Part Number

  • LM431BIZ --: Pin-compatible adjustable shunt regulator with similar 1% reference tolerance and same TO-92/SOIC package options; widely available and directly interchangeable in most TL431 circuits.
  • KA431AZ --: Industry-standard TL431 clone from ON Semiconductor (former Motorola spinoff), offering equivalent programmable reference voltage, same pinout, and good availability.
  • AS431ANTR-G1 --: Low-cost adjustable shunt regulator with comparable 1% accuracy and SOT-23 package, suitable drop-in replacement for TL431B applications with adequate electrical margins.

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