This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

REF3025: REF3025 Vout dropout Voltage

Part Number: REF3025

REF3025 datasheet中显示的VOUT drop voltage是怎么计算的?实际按照数据是1mV的dropout voltage,但是按照Figure 11中,实际输入从2.8V-5.5V,输出基本稳定在2.5V,那就不是很理解drop voltage的定义了。

1mV是指2.5V vout的输出上下浮动值吗?

  • HI

       Vdrop是LDO正常工作所需输入输出最小压差,按照规格表最大50mVmax为最差条件,所以实际设计中需要保证输入输出电压最小压差为50mV.  按照你2.5V输出,输入电压建议至少2.55V(但仍建议保持一些裕度)。