Dear Sir/Madam,

I have a question for your LDO ADP7102.

If I do not put 100kohm RPG resister as your Fig.62 page-17 data sheet, then is the output voltage larger than designed value as formula VOUT=1.22 V{1+(R1/R2)}?

We tried to use your ADP7102 a…

Dear ADI Team,

We are in the process of selecting an appropriate LDO for our design and i wanted to request for your inputs on ADP3303 Vs ADP7102 for our application.

(1) In our design, we have a DC/DC converter (NMK2409SAC) generating 9V DC from 24V…

我用ADP7102做12转5v电源给AD7658，请教三个问题：

1）现想把ADP7102的EN/UVLO直接接VIN，但手册上表明EN/UVLO的最大额定值为VIN(我的VIN是12v) ，这样接不知道长期工作可靠吗？如果可靠，这个脚应该直接接VIN，还是串个电阻更好。

2）12v到5v的转换压差大，请问是只对芯片的VOUT VIN GND管脚增大覆铜面积还是所有管脚？

3）技术规格中：输入电压-启动阈值最大3.2v，关断阈值2.45v什么意思？

谢谢

如图：ADP7102的输入电压15V，同时EN/UVLO与Vin短接以保证芯片上电自启动， ADP7102的输出Vout通过调配电阻设置为12V，Vout用来给几个运放芯片供电，所以负载电流对芯片毫无压力。 Vin和Vout芯片引脚边上各自接了一个2.2uf对地电容，电容的电介质为X7R。

问题来了， ADP7102有时输出异常，为-0.8V（or +0.8V，抱歉有点记不清了），有时则输出正常的+11.98V。 以为芯片坏了，换了2颗新的ADP7102也是一样情况。 后来发现了一个非常奇怪的规律…

ADIsimPower is a very nice tool.. a real time saver.  However I noticed an error in the tool for the ADP2102.

Using parameters for input voltage of +12V the tool specified an input capacitor rated at 6.3V.  Either that, or C1 and C2 in the diagram below…

Hello,

I would like to know if you could provide some facts in terms of specifications for the LT1129-5 and ADP7102 that can help to define which fits better for providing power to the AD7928.

I wonder if I can use a switching supply along with the LT1129…

ADP7102的详细中文使用手册哪位先生有啊？谢谢了啊！

dear all：

        将ADP7102的NC（第4引脚）接地的话会导致没有电压输出吗？数据手册上标记的是“NO CONNECT.DO NOT CONNECT TO THIS PIN.”而在做板时已经将其接地，现在测试时没有电压输出，这可能是NC接地导致的吗？通常情况下NC不是可以接地的吗？