• [LTC2974] About multi-LTC2974 connectivity.

    Hi ADI support team. There are some questions about multi-LTC2974 application. Could you help give some suggestion.

    1. For multi-LTC2974 usage, Can VDD33 of the all LTC2974s be tied together as followed figure?

    2. I don’t understand the Figure 38. DC1613…

  • 【LTC2974】What is the selection principle of current sensing resistance of ltc2974?

    Hi ADI support team.

    What is the selection principle of current sensing resistance of ltc2974? Is there an optimal Risense range for different current values?



    Hi All

    have several LTC2974 which have CML_MEMORY_FAULT.

    Parts were checked before they are soldered to the PCB by the Linear test adapter DC1508B-B and DC1613A Interface Development Tools USB-to-PMBus Controller.

    This error can't be cleared and the configuration…

  • [LTC2974]Some questions about VOUT_ENx output format.

    Hi ADI support team.


    I employ LTC2974 in my new FPGA design to control the sequence of power on/off. I studied the datasheet and had some questions regarding the VOUT_ENx usage. Could you help clarify them?

     There are some statements of VOUT_ENx as following…

  • LTC2974 current sensing filter


    I'm designing a controlled voltage source for 4 channels using a LTC2974 to control four LT3012 LDOs.

    My question it's about current sensing ports. In the datasheet defines how to measure the current with a shunt resistor that includes a filter…

  • LTC2974 PWRGD pin assert delay

    Hi,Support team

    I'm evaluating DC1978A(LTC2974 demo board kit).

    Regarding PWRGD pin,There seems to be a delay of  >140 msec after all power rails goes up.

    I tried "Mfr_config_all_pwrgd_off_uses_uv = 1" and "MFR_POWERGOOD_ ASSERTION_DELAY = 0ms"…

  • LTC2974 TSENSEn pin


    The data sheet recommends connecting unused TSENSEn pins to GND.

    However, the temperature sense inputs (TSENSEn) may be left floating.

    In this case, the temperature reported on floating TSENSEn inputs will be the internal die temperature.

    Are there…

  • LTPowerPlay I2C Base Addressing

    My question is regarding the DC1962C demo board. I'm using LT power play to communicate with it via the DC1613A programming pod. 

    I looked at the schematic and saw for the LTC2974, the ASEL1 pin is tied LOW and ASEL0 is tied HIGH. The Address look…

  • Measuring Current with LTC2977 or LTC2975


    I'm designing a new system. I would like to use a PowerManager. 
    I need to control the current and voltage of 4 supplies. 
    Now I have seen, that I could use a LTC2977. It allows to use the odd channels to be configured as current sens. This would…

  • LTM4651 simulation issue

    Hi there!

    Does the Spice model of LTM4651 work?
    I am using 4651 to make -12V from +24V but can't get the desired output.
    The output is -0.6V with 0.5Vpp ripple and freq is about 15kHz but the switching freq is set to 1.1MHz.
    All external parts have selected…