• LTC3887 3.3V/5V application

    Hi,

    We had a project MB for system and use PSM for power front end.

    Can we use single LTC3887 to achieve below function ?

    1. 3.3V/25A~50A

    2. 5V/25A~50A

    for phase0 and phase1 parallel application.

    If not,

    What's the suggest solution ?

    Such as 2 LTC3887…

  • LTC3887 RUN pin voltage concerns

    Hi,

    This is Yu.

    Now we are using LTC3887 as SMPS controller in our design, and I have some concerns about this pin.

    To achieve the power sequence requirement of the system,

    We are using the 1.8V(generate from other output) to pull-up this pin instead…

  • RE: LTC3870 spice model

    Hello John,

    As we know, LTC3870 is the slave controller (or phase extender) to work with LTC3880, LTC3883, LTC3886 and LTC3887 master controller. There are no output voltage sensing pins and voltage loop inside LTC3870. So LTC3870 can not work alone without…

  • RE: change LTC 3887 settings and program to EEPROM issue

    Hello,

    (1) How do you deal with the WP pin of LTC3887? Did you have this WP pin tied to the GND?

    (2) What is the VOUT range you are using on this board, Low VOUT Range or High VOUT Range?

    (3) How do you set the Bit 6 of MFR_CONFIG_ALL_LTC3887?

    a). "1…

  • change LTC 3887 settings and program to EEPROM issue

    Hi,

    We used LTC3887 on our product, VOUT1 is set as 3.3V by VOUT1_CFG pin, then we re-programed the output to 3.0V in our factory.

    When we got the board, measure the VOUT1 voltage is 3.0V and read out the settings below:

    Page1
    0x26 -> 0x2d9a #Page 1 VOUT_MARGIN_LOW…

  • 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