TLV431ALP Datasheet

Voltage & Current References


The TLV431ALP and B series are precision low voltage shunt regulators that are programmable over a wide voltage range of 1.24 V to 16 V. The TLV431ALP series features a guaranteed reference accuracy of ±1.0% at 25°C and ±2.0% over the entire industrial temperature range of −40°C to 85°C. For TLV431B series, the accuracy is even higher, it’s ±0.5% and ±1.0% respectively. These devices exhibit a sharp low current turn−on characteristic with a low dynamic impedance of 0.20  over an operating current range of 100 A to 20 mA. This combination of features makes this series an excellent replacement for zener diodes in numerous applications circuits that require a precise reference voltage. When combined with an optocoupler, the TLV431A/B can be used as an error amplifier for controlling the feedback loop in isolated low output voltage (3.0 V to 3.3 V) switching power supplies. These devices are available in economical TO−92−3 and micro size TSOP−5 and SOT−23−3 packages. TLV431ALP Features • Programmable Output Voltage Range of 1.24 V to 16 V• Voltage Reference Tolerance 1.0% for A Series and 0.5% for B Series• Sharp Low Current Turn−On Characteristic• Low Dynamic Output Impedance of 0.20  from 100 A to 20 mA• Wide Operating Current Range of 50 A to 20 mA• Micro Miniature TSOP−5, SOT−23−3 and TO−92−3 Packages• These are Pb−Free and Halide−Free Devices• SCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable TLV431ALP Applications • Low Output Voltage (3.0 V to 3.3 V) Switching Power SupplyError Amplifier• Adjustable Voltage or Current Linear and Switching Power Supplies• Voltage Monitoring• Current Source and Sink Circuits• Analog and Digital Circuits Requiring Precision References• Low Voltage Zener Diode Replacements


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