LMV431BIMF/NOPB

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LMV431BIMF/NOPB

Low-Voltage (1.24V) Adjustable Precision Shunt Regulators

Packaging

Package | PIN: DBZ | 3
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $0.98
10-24 $0.87
25-99 $0.81
100-249 $0.69
250-499 $0.64
500-749 $0.52
750-999 $0.41
1000+ $0.37

Features

  • Low-Voltage Operation/Wide Adjust Range
    (1.24 V/30 V)
  • 0.5% Initial Tolerance (LMV431B)
  • Temperature Compensated for Industrial
    Temperature Range (39 PPM/°C for
    the LMV431AI)
  • Low Operation Current (55 µA)
  • Low Output Impedance (0.25 Ω)
  • Fast Turn-On Response
  • Low Cost

Texas Instruments  LMV431BIMF/NOPB

The LMV431, LMV431A and LMV431B are precision 1.24 V shunt regulators capable of adjustment to 30 V. 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 1.24 V band-gap reference. Shorting the cathode to the adjust pin (voltage follower) provides a cathode voltage of a 1.24 V.

The LMV431, LMV431A and LMV431B have respective initial tolerances of 1.5%, 1%, and 0.5%, and functionally lend themselves to several applications that require zener diode type performance at low voltages. Applications include a 3 V to 2.7 V low drop-out regulator, an error amplifier in a 3 V off-line switching regulator and even as a voltage detector. These parts are typically stable with capacitive loads greater than 10 nF and less than 50 pF.

The LMV431, LMV431A and LMV431B provide performance at a competitive price.