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LMV431BCM5XN/a30000avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431ACM5NSN/a2120avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431ACM5XNS国半N/a218000avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431ACM5X- |LMV431ACM5XNSN/a2600avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431AIM5FAIRCHILDN/a630avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431AIM5XNSN/a48000avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431AIMFNSN/a901avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431AIMFXNSN/a52958avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431AIZNSN/a15980avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431BCM5NSN/a183816avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431BCM5NSCN/a1500avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431BIMFNationalN/a14000avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431BIMFNS国半N/a9800avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431BIMFNSC N/a669avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431BIMFXTIN/a2800avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431CM5NSN/a18000avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431CM5XNATIONALN/a71000avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431CZNationalN/a2000avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431CZNSN/a3292avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431IM5NSN/a1700avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431IM5XNSN/a10911avaiLow-Voltage (1.24V) Adjustable Precision Shunt Regulators


LMV431ACM5X ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsLMV431/LMV431A/LMV431B Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsAugust 2003LMV431/L ..
LMV431ACM5X- ,Low-Voltage (1.24V) Adjustable Precision Shunt Regulatorsapplications that require zener diodetype performance at low voltages.
LMV431ACM5X NOPB ,Low-Voltage (1.24V) Adjustable Precision Shunt Regulators 5-SOT-23 -40 to 85Maximum Ratings(1)over operating free-air temperature range (unless otherwise noted)MIN MAX UNITInd ..
LMV431AIM5 ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsLMV431/LMV431A/LMV431B Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsAugust 2003LMV431/L ..
LMV431AIM5/NOPB ,Low-Voltage (1.24V) Adjustable Precision Shunt Regulators 5-SOT-23 -40 to 85Maximum Ratings.. 410 Device and Documentation Support........ 187.2 Handling Ratings 410.1 Docume ..
LMV431AIM5X ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsLMV431/LMV431A/LMV431B Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsAugust 2003LMV431/L ..
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LMV431ACM5-LMV431ACM5X-LMV431ACM5X--LMV431AIM5-LMV431AIM5X-LMV431AIMF-LMV431AIMFX-LMV431AIZ-LMV431BCM5-LMV431BCM5X-LMV431BIMF-LMV431BIMFX-LMV431CM5-LMV431CM5X-LMV431CZ-LMV431IM5-LMV431IM5X
Low-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431/LMV431A/LMV431B
Low-Voltage (1.24V) Adjustable Precision Shunt
Regulators
General Description

The LMV431, LMV431A and LMV431Bare precision 1.24V
shunt regulators capableof adjustmentto 30V. Negative
feedback from the cathodeto the adjust pin controls the
cathode voltage, much likea non-invertingop amp configu-
ration (Referto Symbol and Functional diagrams).A two
resistor voltage divider terminatedatthe adjustpin controls
the gainofa 1.24V band-gap reference. Shorting the cath-
odeto the adjustpin (voltage follower) providesa cathode
voltageofa 1.24V.
The LMV431, LMV431A and LMV431B have respectiveini-
tial tolerancesof 1.5%,1% and 0.5%, and functionally lends
themselvesto several applications that require zener diode
type performanceat low voltages. Applications includea3V 2.7V low drop-out regulator,an error amplifierina 3V
off-line switching regulator and evenasa voltage detector.
These partsare typically stable with capacitive loads greater
than 10nF and less than 50pF.
The LMV431, LMV431A and LMV431B provide performancea competitive price.
Features
Low Voltage Operation/Wide Adjust Range (1.24V/30V) 0.5% Initial Tolerance (LMV431B) Temperature Compensatedfor Industrial Temperature
Range (39 PPM/˚Cfor the LMV431AI) Low Operation Current (55µA) Low Output Impedance (0.25Ω) Fast Turn-On Response Low Cost
Applications
Shunt Regulator Series Regulator Current Sourceor Sink Voltage Monitor Error Amplifier3V Off-Line Switching Regulator Low Dropout N-Channel Series Regulator
Connection Diagrams
TO92: Plastic Package

Top View
SOT23-5
*Pin1isnot internally connected.
*Pin2is internally connectedto Anodepin.Pin2 shouldbe either floating connectedto Anodepin.
Top View
SOT23-3

Top View
August 2003
LMV431/LMV431A/LMV431B
Low-V
oltage
(1.24V)
Adjustable
Precision
Shunt
Regulators
ic,good price


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