TL431精密可调基准电源有如下特点：稳压值从2.5~36V连续可调 参考电压原误差+-1.0 ，低动态输出电阻,典型值为0.22欧姆输出电流1.0~100毫安 全温度范围内温度特性平坦，典型值为50ppm 低输出电压噪声。 -TL431 adjustable precision reference power supply has the following characteristics: Regulators value continuously adjustable from 2.5 ~ 36V　reference voltage of the original error of+-1.0 , low dynamic output resistance, typically 1.0 to 0.22 ohm output current 100 mA　the whole temperature temperature characteristics within the flat, a typical value of 50ppm　low output voltage noise.