• Lt3083 voltage and current lower than expected


    I am trying to output 1V with a load of 3A from a lt3083 but the output voltage and current are lower than they should be. When I lower input voltage, raise the output voltage, or lower the load to ~1A or less, I get the correct output voltage…

  • LT3083 - DAC controlled step response


    I use two paralleled LT3083 and control both SET pins by a DAC.

    LT3083 is powered by Vcontrol = +12 V and Vin = +6 V

    DAC is used to set the output voltage in the range 0-5.5 V.

    When applying "rising" stepa to the SET pin, the LT3083 works as expected…

  • Paralleled LT3083 plus buck circuit choice question


    I have learned that a special hi-efficiency regulator circuit showed on Page 21 of datasheet.

    In order to achieve my real demand, by search and pick, I find the monolithic buck IC, LT8648.

    Now my question is, can a LT8648 buck replace the LTC3610…

  • LT3083 current / load sharing


    LT3083 datasheet shows 10 mOhm ballast resistors connected to OUT for using two LT3083 in parallel.

    The TO-220 package has quite long pins, which will automatically act as ballast resistors, but I am not sure if the resistance is large enough.

  • Adding Reverse Current Protection to LT3083


    I want to use the LT3083 due to its low dropout and its possibility to easily set the output voltage via DAC.

    But I definitely need reverse current protection.

    To add reverse current protection, I thought of placing a diode at the IN pin. Thus…



    We have used LT3083 to convert 4V to 1.35V.

    Vcontrol pin shorted to Vin, so that dropout voltage is 1.25V

    As per datasheet Vout range given as 0 to Vin(max) - Vdropout, so with the help of set pin we should able to  get 0 to 2.75V as o/p range.


  • Voltage applied to VOUT of LT3083


    what will happen if an external  voltage is applied to VOUT of the LT3083, that is greater than the voltage at the SET pin, but smaller than the voltage at VIN?

    What will happen if an external  voltage is applied to VOUT of the LT3083, that is greater…

  • Disable LT3083

    If I want to disable the device LT3083, Vout=0V, is it enough to set the Vin equals to 0V?

    Should I have to set the Vctrl=0V?

  • Thermal area required for LT3083

    The application is to use LT3083 as constant current source of 1A. If I have 1 oz 4 layer PCB, which thermal considerations I need to take care. In terms of Copper area, thermal vias etc...

    Can you please provide the calculations to get best optimum…

  • LT3083使能