Hi,

I plan to use the LTC3643 in a design. I have three supplies, each one with its own LTC3643. Is it possible to tie the three Vcap pins of each supply together and to put only one storage capacitor for the three supplies ? Have you already try this…

Hi everyone,

I am currently designing a power backup function using LTC3643.  I use four 470mF super capacitors in series but I had some bad issues. This function works perfectly if I use 6x 220mF in series instead of 4x 470mF.

Il would like to know how…

Hello,

I had a close look at the LTC3643 for handling SuperCaps, it seems to almost match our requirements. But my application seems a bit special: My system sometimes needs more (burst) current than delivered from its power input. For these situations…

亲爱的ADI老师好： 

在使用芯片的时候出现以下问题

测试条件：输入电压12v，输出电压7.2v,接2个4700uF电容。

1、在通电测试几次充放电后，GATE、CAP脚就对地短路。原理图如下：

Hi There,

I have a question regarding a charge process in LTC3643.

Is there any situation that a bottom switch of LTC3643 is broken during charge process?

It is described in the datasheet that maximum charge current is limited up to 2A, therefor internal…

芯片datasheet里面写的CAP电容电压最大40V，这个充电电压是否可以调整，我接的超级电容是2.3V，不能大于该2.3V电压。