| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 3 Pin |
| Capacitance Tolerance | ±0.5 % |
| Case/Package | SOT-23-3 |
| Output Voltage | 1.24V ~ 30V |
| Output Current | 15 mA |
| Number of Channels | 1 Channel |
| Number of Positions | 3 Position |
| Input Voltage (Max) | 35 V |
| Output Voltage (Max) | 30 V |
| Output Voltage (Min) | 1.24 V |
| Output Current (Max) | 15 mA |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Voltage Rating | 1.24V ~ 30V |
| Input Voltage | 35 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Size-Length | 2.92 mm |
| Size-Width | 1.3 mm |
| Size-Height | 0.93 mm |
| Operating Temperature | -40℃ ~ 85℃ |
| Temperature Coefficient | ±138 ppm/℃ |
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.
TI
Low-Voltage (1.24V) Adjustable Precision Shunt Regulators
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