LMV431A是TI公司的一款并联电压基准产品，LMV431A是低电压 (1.24V) 可调节精密并联稳压器，本页介绍了LMV431A的产品说明、应用、特性等，并给出了与LMV431A相关的TI元器件型号供参考。
LMV431A - 低电压 (1.24V) 可调节精密并联稳压器 - 并联电压基准 - 电压基准 - TI公司（Texas Instruments，德州仪器）
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.
- 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
