Search tips
Showing 151 results View by: Thread Post Sort by
    Answered

  • LMR38020: Different operating modes of the LMR38020

    Resolved
    Part Number: LMR38020 Hi, We having a question about the different references of the LMR38020. - LMR38020 S DDAR => spread spectrum version - LMR38020 FS DDAR => FPWM + spread spectrum version - LMR38020 F DDAR => FPWM version We using the LMR38020 S…
    • Resolved

  • LMR38020: LMR38020SDDAR

    TI Thinks Resolved
    Part Number: LMR38020 Tool/software: LMR38020SDDAR has no output and can only be restored when the input terminal is completely powered off and then powered on again. The input VIN and EN pins of LMR38020 are directly connected together; The input circuit…

  • LMR38020: Ta

    TI Thinks Resolved
    Part Number: LMR38020 Tool/software: Hi team, Regarding the Ta mentioned in LMR38020 specification, as shown in the figure below, please help confirm what specific measurement conditions this refers to. Does it refer to the ambient temperature a few…

  • LMR38020: Is there a controller(Using external FETS) with Vin 48V and similar functionality as LMR38020?

    TI Thinks Resolved
    Part Number: LMR38020 Other Parts Discussed in Thread: LM5145 , LM5148 Tool/software: Hi, I’m planning to use a PWM controller in My Buck converter application and use External FETS. Below are the desired specifications : Vin : 48-52V Vout : 12-36V…

  • LMR38020: LMR38020

    Part Number: LMR38020 Other Parts Discussed in Thread: UCC21542 , , LM5165 I have designed an auxiliary power supply using the LMR38020 for conversion from 48V to 13V for an LLC resonant converter (160kHz switching frequency). The 13V output of the LMR38020…
    • Answered

  • LMR38020: LMR38020 fly-buck problem

    Resolved
    Part Number: LMR38020 Other Parts Discussed in Thread: LM5160A Hi, I would like to use LMR38020 for a DC-DC flybuck converter with 3 outputs, two of them being not isolated(3.3V/1.5A and 12V/200mA), one of them being isolated(12V/100mA). But I meet…
    • Resolved

  • LMR38020: LMR38020 fly-buck output voltage ripple probelm

    Part Number: LMR38020 Hi， I used LMR38020 for a DC-DC flybuck converter with 3 outputs, two of them being not isolated(3.3V/1.5A and 12V/200mA), one of them being isolated(12V/100mA). But the 3.3V output voltage ripple is very large at full load, how…

  • LMR38020: Voltage drop when load current from 0A to 300mA

    TI Thinks Resolved
    Part Number: LMR38020 Tool/software: Hi Ti experts, My customer is using LMR38020FSDDAR, from 48V to 24V. When customer changes the load current from 0A to 300mA. There will be a voltage drop and it will not back to normal voltage level agian. Could…
    • Answered

  • LMR38020-Q1: Adding snubber circuit to prevent EMI

    Resolved
    Part Number: LMR38020-Q1 Tool/software: Hi team, My customer has been considering adding the snubber circuit(R + C) on the SW pin to prevent EMI. Is there recommended value of snubber circuit? Best regards, Shunsuke Yamamoto
    • Resolved
    • Answered

  • LMR38020: LMR38020 fly-buck output voltage problem

    Resolved
    Part Number: LMR38020 I built a flybuck auxiliary power supply using LMR38020FDDAR, which outputs two 12V. The designed non isolated 12V_ANA output power is 12W, and the isolated 12V_H output power is 3W. The voltage of the non isolated 12_ANA does not…
    • Resolved

Didn't find what you are looking for? Post a new question.