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tl431-5v转2.5v稳压电路图

作者:嘉芯业科技 来源:本站 最新更新于:2021-10-08 12:04:00 分享:

TL431相当于可编程齐纳二极管,内部有2.5V的带隙基准二极管、可以用晶体管吸收100MA电流,可用作简易基准电压发生电路或恒定电流发生电路。
电路工作原理    2.5v稳压电路图的电路用于分流调节电路,其他输出电压VOUT由公式VOUT=(1+R1/R2)*2.5确定

TL431-2.5v稳压电路图
TL431 is equivalent to a programmable Zener diode. There is a 2.5V bandgap reference diode inside. It can absorb 100MA current with a transistor and can be used as a simple reference voltage generating circuit or a constant current generating circuit.
The working principle of the circuit. The circuit in the 2.5v voltage regulator circuit diagram is used in the shunt regulator circuit. The output voltage VOUT is determined by the formula VOUT=(1+R1/R2)*2.5. In order to output 10V, set R1=3R2 to set the bias resistance RB and VOUT and the load. Current IL