• ADP7118

    Hi, have the next problem.
    When I connect to the power supply, that ADP7118 may not turn on, and it is necessary to turn the board power on and off several times.
    It feeds two operational amplifiers. The negative voltage is done using ADP7182. There are…

  • ADP7118

    12v直流输入5V输出,这样电路搭建是否可以实现?

  • ADP7118 Soft Start Time

    Hi All,

    I have a question about SStime calculation for the ADP7118 LDO.

    In the data sheet page 15, SStime calculation equation is expressed as next,

    SStime (usec) = 380us + 0.6*Css, (where Css is in F)

    When Css is 10nF, SStime is calculated as 380us…

  • adp7118 as H-bridge supply

    Hi

    I want to use adp7118 as the power supply of my H-bridge.

    my H-bridge should feed an inductive load repetitively 20ms with positive current and 20ms with the negative current nonstop for a long time (10 years). Vin=5.25 Vout=5 
    each 20ms in transients…

  • ADP7118 & ADP7142 Adjustable Formula Error

    Dear All:

    We Check ADP7118 & ADP7142 fo found adjustable formula error ,Why is it 5V instead of 1.22V?

    Best

    Jack

  • ADP7118有时不工作

    使用ADP7118AUJZ-R2作为电源,外部供电为12V,第一级ADP7118将12V电源稳压至8V,第二级ADP7118稳压至5V,模拟电路部分功耗约为50mA;另外负电源有LT1931ES5产生,再由ADP7182AUJZ-ADJ生成-5V。现在的问题是,如果将电源适配器的电源端子直接插入设备,有将近20%的几率+5V LDO(第二级ADP7118)不工作,量着只有-0.6V,4脚也没有1.25V基准电压,而且有噼啪声,接入电源瞬间感觉有电火花产生,监控电流,总电流约100mA。,但是其他电源均正常…

  • ADP7118 PSRR and noise graph for 15V output.

    Hello,

    I am planning to use ADP7118 to regulate my switching regulator's output. The output voltage of ADP7118 is going to be 15 with 0.5V to 1V headroom and the load is about 80mA to 120mA. I need PSRR and noise spectrum graph under these conditions…

  • 使用多个ADP7118或7112的问题

    拟使用具有使能的多个ADP7118或7112,分别在不同时间段输出不同电压驱动同一个电阻。这样,具有使能的ADP7118或7112的输出端和负载电阻之间是否还需要采用模拟开关,对多个ADP7118或7112加以隔离?即,不使用模拟开关的话,多个ADP7118或7112的输出端同时接到了负载电阻,多个ADP7118或7112分别工作输出电压时对输出电压或者ADP7118或7112是否有影响?

    输出电压高的可达12左右,低的在3V以上,请问有什么好的方案?

    另ADP7118或7112有什么特别的区别吗…

  • ADP7104没电压输出,ADP7118输出不正常

    我选用的是ADP7104ARDZ-5.0-R7,固定5V输出。但是输入接上9V后,电流变成3A多,等于短路。请ADI技术人员指导一下这是为什么呢?按参考电路来做,输入电压在电压范围之内,电流却变得那么多,还没有电压输出。

                       ADP7118AUJZ-3.3-R7,固定3.3V输出。但是我输入是5V,输出也是5V。我按里面的电路来做,为什么输出不对呢?

  • RE: ADP7118有时不工作,不能输出电压

    能否提供一下原理图,便于分析。