Product Summary
The LM431BC is a programmable shunt regulator. The output voltage can be set any value between VREF (approximately 2.5 volts) and 36 volts with two external resistors.
Parametrics
LM431BC absolute maximum ratings: (1)Cathode Voltage: 37 V; (2)Cathode Current Range (Continuous): -100 to +150 mA; (3)Reference Input Current Range: -0.05 to +10 mA; (4)Power Dissipation M, Z Suffix Package: 770 mW; (5)Power Dissipation N Suffix Package: 1000 mW; (6)Storage temperature: -65 to + 150 °C; (7)Junction Temperature: +150 °C.
Features
LM431BC features: (1)programmable output voltage to 36 volts; (2)low dynamic output impedance 0.20 Typical; (3)sink current capability of 1.0 to 100mA; (4)equivalent full-range temperature coefficient of 50ppm/°C typical; (5)temperature compensated for operation over full rated operating temperature range; (6)low output noise voltage; (7)fast turn-on response.
Diagrams
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![]() LM431BCM/NOPB |
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![]() LM431BCM3/NOPB |
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![]() Voltage & Current References ADJ PREC ZENER SHUNT REG |
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![]() LM431BCM3X/NOPB |
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![]() LM431BCM3 |
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![]() LM431BCM3X |
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![]() IC VREF SHUNT PREC ADJ SOT-23-3 |
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![]() LM431BCMX |
![]() Fairchild Semiconductor |
![]() Voltage & Current References SOP-8 Shunt |
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![]() LM431BCMX/NOPB |
![]() National Semiconductor (TI) |
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