LMV431, LMV4312IM5X, LMV431ACM-5 - 225 Selling Leads, Datasheet
MFG:N/A Package Cooled:N/A D/C:2005+
LMV431, LMV4312IM5X, LMV431ACM-5 - 225 Datasheet download
Part Number: LMV431
MFG: N/A
Package Cooled: N/A
D/C: 2005+
LMV431, LMV4312IM5X, LMV431ACM-5 - 225
- Table of contents:
Info of LMV431
Info of LMV4312IM5X
Info of LMV431ACM-5 - 225
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About LMV431
PDF/DataSheet Download
Datasheet: LMV431
File Size: 569687 KB
Manufacturer: NSC [National Semiconductor]
Download : Click here to Download
About LMV101
PDF/DataSheet Download
Datasheet: LMV101
File Size: 788168 KB
Manufacturer: NSC [National Semiconductor]
Download : Click here to Download
About LMV101
PDF/DataSheet Download
Datasheet: LMV101
File Size: 788168 KB
Manufacturer: NSC [National Semiconductor]
Download : Click here to Download
LMV431 General Description
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.
The LMV431, LMV431A and LMV431B have respective initial tolerances of 1.5%, 1% and 0.5%, and functionally lends themselves to several applications that require zener diode type performance at low voltages. Applications include a 3V to 2.7V low drop-out regulator, an error amplifier in a 3V off-line switching regulator and even as a voltage detector. These parts are typically stable with capacitive loads greater than 10nF and less than 50pF. The LMV431, LMV431A and LMV431B provide performance at a competitive price.
The LMV431, LMV431A and LMV431B have respective initial tolerances of 1.5%, 1% and 0.5%, and functionally lends themselves to several applications that require zener diode type performance at low voltages. Applications include a 3V to 2.7V low drop-out regulator, an error amplifier in a 3V off-line switching regulator and even as a voltage detector. These parts are typically stable with capacitive loads greater than 10nF and less than 50pF. The LMV431, LMV431A and LMV431B provide performance at a competitive price.
LMV431 Maximum Ratings
Storage Temperature Range −65˚C to +150˚C
Operating Temperature Range
Industrial (LMV431AI, LMV431I) −40˚C to +85˚C
Commercial (LMV431AC, LMV431C, LMV431BC) 0˚C to +70˚C
Lead Temperature
TO92 Package/SOT23 -5,-3 Package
(Soldering, 10 sec.) 265˚C
Internal Power Dissipation (Note 2)
TO92
0.78W
SOT23-5, -3 Package 0.28W
Cathode Voltage 35V
Continuous Cathode Current −30 mA to +30mA
Reference Input Current range −.05mA to 3mA
Operating Temperature Range
Industrial (LMV431AI, LMV431I) −40˚C to +85˚C
Commercial (LMV431AC, LMV431C, LMV431BC) 0˚C to +70˚C
Lead Temperature
TO92 Package/SOT23 -5,-3 Package
(Soldering, 10 sec.) 265˚C
Internal Power Dissipation (Note 2)
TO92
0.78W
SOT23-5, -3 Package 0.28W
Cathode Voltage 35V
Continuous Cathode Current −30 mA to +30mA
Reference Input Current range −.05mA to 3mA
LMV431 Features
Low Voltage Operation/Wide Adjust Range (1.24V/30V)
0.5% Initial Tolerance (LMV431B)
Temperature Compensated for Industrial Temperature
Range (39 PPM/˚C for the LMV431AI)
Low Operation Current (55µA)
Low Output Impedance (0.25Ω)
Fast Turn-On Response
Low Cost
0.5% Initial Tolerance (LMV431B)
Temperature Compensated for Industrial Temperature
Range (39 PPM/˚C for the LMV431AI)
Low Operation Current (55µA)
Low Output Impedance (0.25Ω)
Fast Turn-On Response
Low Cost
LMV431 Typical Application
Shunt Regulator
Series Regulator
Current Source or Sink
Voltage Monitor
Error Amplifier
3V Off-Line Switching Regulator
Low Dropout N-Channel Series Regulator
Series Regulator
Current Source or Sink
Voltage Monitor
Error Amplifier
3V Off-Line Switching Regulator
Low Dropout N-Channel Series Regulator
LMV431 Connection Diagram
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