• LTC2974 current sensing filter

    Hello, 

    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 TSENSEn pin

    Hello

    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…

  • 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"…

  • 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

    Hello 

    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…

  • RE: Several questions about PSM

    Hi Hiroyuki,

        Here are your answers:

    Q1: The DC1962C demo board contains three different PSM devices: LTC3880, LTC2974, and LTC2977. The LTC3880 actively controls current on a cycle-by-cycle basis, so can detect peak current and respond immediately. In…

  • Monitoring & Controlling multiple power path serially?

    We would like to monitor all of our power path to external devices, for power management, diagnostic and fault isolation.

    Most power path start from an isolating DCDC and then fan out to 3-5 outputs, we will have 48V,24V,12V DCDC all isolated from each…

  • 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