LMV431IM5/NOPB ,Low-Voltage (1.24V) Adjustable Precision Shunt Regulators 5-SOT-23 -40 to 85Features 3 DescriptionThe LMV431, LMV431A and LMV431B are precision1• Low-Voltage Operation/Wide Ad ..
LMV431IM5X ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsLMV431/LMV431A/LMV431B Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsAugust 2003LMV431/L ..
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LMV431CM5X/NOPB-LMV431IM5/NOPB
Low-Voltage (1.24V) Adjustable Precision Shunt Regulators 5-SOT-23 0 to 70
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LMV431, LMV431A, LMV431BSNVS041G –MAY 2004–REVISED SEPTEMBER 2014
LMV431x Low-Voltage (1.24-V) Adjustable Precision Shunt Regulators Features 3 DescriptionThe LMV431, LMV431A and LMV431B are precision Low-Voltage Operation/Wide Adjust Range 1.24V shunt regulators capableof adjustmentto 30(1.24 V/30V) V. Negative feedback from the cathodeto the adjust• 0.5% Initial Tolerance (LMV431B) pin controls the cathode voltage, much likea non- Temperature Compensated for Industrial inverting op amp configuration (Referto Symbol and
Functional Diagrams).A two-resistor voltage dividerTemperature Range (39 PPM/°C for the
terminatedat the adjust pin controls the gainofaLMV431AI)
1.24V band-gap reference. Shorting the cathodeto• Low Operation Current (55 µA) the adjust pin (voltage follower) providesa cathode• Low Output Impedance (0.25Ω) voltageofa 1.24V. Fast Turn-On Response The LMV431, LMV431A and LMV431B have• Low Cost respective initial tolerancesof 1.5%, 1%, and 0.5%,
and functionally lend themselves to several
2 Applications applications that require zener diode type
performanceat low voltages. Applications includea3• Shunt Regulator Vto 2.7V low drop-out regulator,an error amplifierin• Series Regulator a3V off-line switching regulator and even asa Current Sourceor Sink voltage detector. These parts are typically stable with
capacitive loads greater than10 nF and less than 50• Voltage Monitor pF.• Error Amplifier
The LMV431, LMV431A and LMV431B provide• 3-V Off-Line Switching Regulator performanceata competitive price.• Low Dropout N-Channel Series Regulator
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe datasheet.
Symbol and Functional Diagrams
