• LT3758


    Table 1 in LT3758 datasheet contains values of RT - Timing Resistor for setting the Switching Frequency.

    Can I choose values of RT not quite equal to those from the table, e.g. 30.0 kOhm instead of 30.9 - to set the Switching Frequency not equal to…

  • LT3758 Startup Failure?

    Hi all.

    I've designed two PCBs using the LT3758- one is a SEPIC, one is an inverting converter. I want to use them to generate about 100V and -100V respectively. I've never designed a switching power supply before and am aware that they can be finicky…

  • LT3758 - 12V/5A

    Can we use schematic from LT3758/LT3758A datasheet (page 38) for design power supply (with stronger M1,D1 and 5A L1A/B) with this requirements:

    Input voltage - 10...65V
    Output voltage - 12V
    Output current - 0.01....5A.

    Should we use one or two MOSFET topology…

  • LT3758 SEPIC startup failure


    I have a SEPIC design using the LT3758 out of about 30 built 3 have failed damaging the inductor and or the output diode. This failure appears only to occur on startup and I have been unable to duplicate the failure on the bench. using an electronic…

  • LT3758 Soft start functionality

    Hi ,

    I am quite not able to understand the soft start feature of LT3758 after going through the datasheet. The information given in the datasheet is very minimal. 

    The startup waveform given in the Datasheet page no-33 for SEPIC converter shows that there…

  • LT3758 radiated emmisions test failed

    Hallo, I designed a flyback power supply using the LT3758 who works fine. The only problem is that the radiated emmision test from the unit failes in the frequency range 30Mhz-100Mhz (see picture M08.EMF). You can find the schematic from the supply in…

  • Compensarion design for the LT3758

    Is there an app note that describes how to compensate the LT3758  in a boost converter configuration?

  • LT3758 boost converter in forced continuous mode

    Can I run the LT3758 in forced continuous mode in the boost converter configuration. How do I design for that if possible? I am going from 50V to 86V

  • Loop Compensation when LT3758 used in Cuk topology


    I'm trying to use LT3758 in Cuk topology. I'm unable to find the Excel tool (for Loop compensation) in LT Power CAD regarding the same where as the Excel tool for the same IC in Boost topology is available. Is there any tool or App note available…

  • LT3758 in Flyback with optoisolator feedback for 24V and 4A

    Hi Dear,

          I want to use LT3758 in Flyback with optoisolator feedback for 24V and 4A output with 18V to 36V input.

    I am not a power engineer, can you please provide some suggestions regarding the transformer selection?

    I have to select a switching…