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LMV431/LMV431A/LMV431B,pdf dat
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2009-10-06
李敏
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The LMV431, LMV431A and LMV431B are precision 1.24V
shunt regulators capable of adjustment to 30V. Negative
feedback from the cathode to the adjust pin controls the
cathode voltage, much like a non-inverting op amp configuration
(Refer to Symbol and Functional diagrams). A two
resistor voltage divider terminated at the adjust pin controls
the gain of a 1.24V band-gap reference. Shorting the cathode
to the adjust pin (voltage follower) provides a cathode
voltage of a 1.24V.
shunt regulators capable of adjustment to 30V. Negative
feedback from the cathode to the adjust pin controls the
cathode voltage, much like a non-inverting op amp configuration
(Refer to Symbol and Functional diagrams). A two
resistor voltage divider terminated at the adjust pin controls
the gain of a 1.24V band-gap reference. Shorting the cathode
to the adjust pin (voltage follower) provides a cathode
voltage of a 1.24V.
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