• Wrong application circuit of LTC1871

    In the product page and the datasheet of LTC1871, there is a picture describing the typical application of the IC. It is a simplified example circuit of the product as the picture below, which looks a little weird.

    Vin is directly connected to Vout…

  • Thermal  runaway of LTC1871.

    Please see this circuit diagram attached. The input voltage on pin 9 is from a variable power supply. It does not matter what voltage is applied to pin 9, with a 500mA load, the input current will rise to about 1.5A and more, within 20 to 30sec. before…

  • Compensating the LTC1871 for a Boost power supply

    I have been looking on how to compensate at the ITH pin for a boost mode power supply using the LTC1871, but after looking at some design references for this current mode compensation techniques using transconductance amplifier they say that you should…

  • Compensator circuit of LTC1871 and LTC3704

    I plan to use LTC1871 and LTC3704, but unfortunately these regulators are not supported by LTpowerCAD. The reference manuals of these regulators are quite detailed to make quantity of FET, diode, impedances and boost capacitor, but I did not find any…

  • Instability on Flyback converter using LTC1871


    We are using the LTC1871 on a Flyback converter design.

    On some boards, we are facing an instability generating audible noise trhu the transformer.

    The measures on the switching MosFET shows abnormal jitter.

    What can be the origin of this jitter…

  • 寻求LTC1871替代器件


  • LTC1871 - Can I simulation AC analysis in LTSpice?

    I would like to design a power supply with LTC1871 and my question is can I simulation AC analysis in LTSpice with this IC?

    Best regards
    Adam Toth

  • LTC1871重载时PWM占空比不连续


  • RE: LTC3803 soft start issue

    HI Gperica

    thanks for your prompt reply.  My application is an isolated power supply but I used a Aux winding for FB

    I checked the reference schematicn of  LTC1871 with external SS and ran a simple simulation(added the circuit at the output of the Aux winding…

  • RE: High Voltage Power Supply (2.5 KV+)

    I did not have any luck with LT3580 or LT8361.  Both had issues staying in deep DCM, which prevented me reaching 3kV.  I was able to successfully get to only around 1.5kV.

    I found another design online using a LTC1871. (https://www.edn.com/1-kv-power-supply…