• What replacement do you suggest for LT8640? I know that AD acquired LT. Thank you!

    What replacement do you suggest for LT8640? I know that AD acquired LT. Thank you!

  • LT8640S - LTspice simulation of synchronous clocking - example jig does not seem to support this modelling

    I understand from the datasheet that the switching clock can be controlled by applying a clock to the Mode (sync) input. I cannot confirm this with simulation in LTspice. The internal clock does not track the externally applied clock - nor does the clkout…

  • RE: LT8636 Spice Model

    Eric,

    I have the same issue when looking for the lT8636 LT Spice model, it is not released yet. However, it does appear that the LT8640 is basically the same chip architecture and there is an LT Spice model available for the LT8640. 

    I have copied the…

  • RE: 能获ADI&世健万元大奖的电源设计,究竟长什么样?(内有福利哦~)

    ADI & 世健·电源智造设计赛 一等奖

    选用 LT8640 具有 2.5μA 静态电流的 42V、5A 同步降压型超低噪声开关稳压器

    本作品选用 LT8640 芯片,该芯片除了动态和外部补偿外的各项性能都十分突出,完美契合比赛的指标要求。

    此外,LT8640有一种叫做CCM的模式,可以构成理想半桥,具有对电流推拉的能力,使其通过某些方式补偿后获得高动态响应成为可能。

  • RE: LT8390A startup time

    Hi 

    Base on our off line discussion and given the requirements 

    We would like to advice that you to use LT8640S/LT8643S which is designed for high voltage input with high output power

    Regards

  • RE: What other Jfet amplifier can replace ADA4610? I cannot find it on supplier sites anymore. Thank you!

    Hey, I was talking about digikey, it is not there anymore. But i found a replacement. Now I am concerned about LT8640, same thing, i cannot find it online. Can you help? Maybe a replacement?

    This is about a medical device, good SNR is appreciated.

  • RE: Is it possible to connect the output of LTC3126 in parallel to double output current?

    Hi,

    Current sharing is difficult in LTC3126 as it doesn't have an external Vc pin like LTC3118. We can control the inductor current level with this pin. 

    Paralleling LTC3126 with additional current sensing and load sharing circuitry might not be a…

  • Use LTspice .sub model in ADIsimPE

    Original Question: Use LTspice .sub model in ADIsimPE by Kentxu

    Given that LT is now part of AD, I was just wondering if it would (or will) be possible to use a LT part in ADIsimPE ?

    In particular I would like to use the LT8640-1.sub model.

    Any thoughts…

  • LT8642S- spread spectrum rejection

    I have been testing a new part, the LT8642S. All looks good but I have seen a low frequency signal content on the output ripple.

    This is the test circuit:

    Looking before and after the output ripple filter I can see the ripple due to switching at 1MHz…

  • TAGS LIST: Power by Linear

    LTM8045
    LTM8049
    LTM4651
    LTM4661
    LTM4686
    LTM4676
    LTM4686-1
    LTM4676A
    LTM4675
    LTM4677
    LTM4678
    LTM8062
    LTM8061
    LTM8052
    LTM8026
    LTM8056
    LTM8064
    LTM8054
    LTM8055
    LTM4600
    LTM4600HV
    LTM4608A
    LTM4604A
    LTM8032