• RE: LTC7149 problems

    Hi ,

    The VOUT went slightly positive before going down. That's not expected.  Can you try isolating the load to see if this going positive is gone by using resistive load instead of an E-load? It may also help if you probe the VIN and SW…

  • 给运放(ADA4807+ADA4927)供电的正负电源上电启动失败

    设计的一块多通道模拟信号电路板,ADC前端有16路模拟通道,每个通道有1片ADA4807-2ARMZ和一片ADA4927,都是正负5V供电。供电方案如下:

    正电源: LTM4644(12V转5.5V)+TPS7A8400(LDO 5.5V转5V)

    负电源:ADP5074(12V转-5.5V)+LT3091MPDE(LDO,-5.5V转-5V)

    电源没有做上电顺序控制,上电之后默认都开始工作。

    启动失败的现象是:

    1. 上电之后,测量运发昂的供电电压,正电源输出+5V,正常;负电源输出不正常,一般是…

  • ADIsimPower Design Tools Download

    IC                  Design Tool                                                                    Download Tool  URL

    LDOs            ADI Linear Regulator Design Tool and Parametric Search  http://download.analog.com/PMP/ADI_LinearRegulators.zip

    ADP1612     ADP161x Boost Regulator Design Tool http://download.analog.com/PMP/ADP161x_BoostDesigner.zip
    ADP161…

  • 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