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Texas Instruments TLV431x Low-Voltage Adjustable Precision Shunt Regulator, Part #TLV431AIDBVR | DEX

Texas Instruments TLV431x Low-Voltage Adjustable Precision Shunt Regulator, Part #TLV431AIDBVR | DEX

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Texas Instruments TLV431x Low-Voltage Adjustable Precision Shunt Regulator, Part #TLV431AIDBVR | DEX features: 1• Low-Voltage Operation, VREF = 1.24 V • Adjustable Output Voltage, VO = VREF to 6 V • Reference Voltage Tolerances at 25°C – 0.5% for TLV431B – 1% for TLV431A – 1.5% for TLV431 • Typical Temperature Drift – 4 mV (0°C to 70°C) – 6 mV (–40°C to 85°C) – 11 mV (–40°C to 125°C) • Low Operational Cathode Current, 80 µA Typical • 0.25-Ω Typical Output Impedance • Ultra-Small SC-70 Package Offers 40% Smaller Footprint Than SOT-23-3 • See TLVH431 and TLVH432 for: – Wider VKA (1.24 V to 18 V) and IK (80 mA) – Additional SOT-89 Package – Multiple Pinouts for SOT-23-3 and SOT-89 Packages • On Products Compliant to MIL-PRF-38535, All Parameters Are Tested Unless Otherwise Noted. On All Other Products, Production Processing Does Not Necessarily Include Testing of All Parameters.

Applications: • Adjustable Voltage and Current Referencing • Secondary Side Regulation in Flyback SMPSs • Zener Replacement • Voltage Monitoring • Comparator With Integrated Reference

The TLV431 device is a low-voltage 3-terminal adjustable voltage reference with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24 V) and 6 V with two external resistors (see the Parameter Measurement Information section). These devices operate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references. When used with an optocoupler, the TLV431 device is an ideal voltage reference in isolated feedback circuits for 3-V to 3.3-V switching-mode power supplies. These devices have a typical output impedance of 0.25 Ω. Active output circuitry provides a very sharp turnon characteristic, making them excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.

 

TEX:TLV431AIDBVR 

TLV431AIDBVR 

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