LMV431 - 低电压 (1.24V) 可调节精密并联稳压器

LMV431是TI德州仪器公司的一款并联电压基准产品，LMV431是低电压 (1.24V) 可调节精密并联稳压器，本站介绍了LMV431的封装应用图解、特点和优点、功能等，并给出了与LMV431相关的TI元器件型号供参考。

LMV431 - 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 - 德州仪器

产品描述

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.

产品特性

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

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