• LTC3388 - DC bias derating for ceramic capacitors

    The "typical application" reference circuit in the LTC3388 data sheet includes several capacitors:

    • 2.2uF 25V (Vin)
    • 1uF 6V (CAP)
    • 4.7uF 6V (Vin2)
    • 47uF 6V (Vout) -- this one will vary by application and is just included here for completeness
  • LTC3388 delayed start

    I would like to use an RC to delay the enable line on the LTC3388. How much current can I steal from the VIN2 pin, if any?

    Thanks,

    - Jim -

  • Two LTC3388 powered by the same Vin rail: issues occur

    I have two LTC3388-3 that are powered by the same Vin rail @12V. Another VR, LT3971-3.3, is also at the same Vin rail. No load is attached to the output of the VRs and my goal is to check the power-efficiency of the VR at this scenario.

    If only one LTC3388…

  • TSP62840 Replace - nanopower buck recommend request.

    Dear, 

    I am looking for a product that meets the following conditions for nano power buck.

    Replacement part : TSP62840YBGR 

    it is 60nA quiescent current. 

    I checked ADI product. (LTC3388-3 - 720nA, LT8608 - 2.5uA)

    Could you please advice nano power product…

  • RE: Tunable notch Filters for audio frequency

    Thanks, Philip. You really helped a lot.

    The problem now is the dual supply. Do you see it possible to use 2x LTC3388-3 for achieving +/-5V from a single 9V supply and then use two LDO for powering the system with +/-4.5V for audio application?

  • RE: LTC1666 - Vref - input resistor

    Thank you so much!!!!!

    Why sometimes the resistor between two chips interface are suggested? Just to limits the current in case you have different logic voltage levels?

    Do you have any suggestion to source the board with a split voltage +/-5 with 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 优秀设计奖

    基于 LT8640S 的高效率电源

    LT8645S 与 LT8643S 并联电源

    双模交替电源

    基于 LTC3388 和 LT8643 的 2.5V 2A 双模电源

  • AD5421输出4mA电流偏差的问题

    应用于HART仪表,使用了AD5421+AD5700套片来实现HART通信,我们自己绘制并焊接了一些开发板,开发板上除了HART套片外还有一个MSP432单片机以及一些放大器。
    在实际使用中发现当设定输出4mA时,部分开发板输出为4.6mA、部分开发板一开始输出为4mA随后逐渐变化为4.6mA、部分开发板可以输出4mA。
    AD5421使用了4-20mA工作模式,尝试调整了失调寄存器等参数对其没有影响。
    开发板上因功耗问题,AD5421输出12V电压,使用了一个LTC3388 DCDC转换器为全板提供3…

  • LTC3330: LDO problem and workaround (but why?)

    As part of our research project, our group was finally able to make our LTC3330 work (or so it seems). It took us a week or so. Let me explain:

    This picture is from the datasheet, figure 7, with the second chip removed (an LTC3388) so it reflects our…

  • TAGS LIST: Power Management

    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