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  • LM25119: The output voltage issue for LM25119

    TI Thinks Resolved
    Part Number: LM25119 Hi, Regarding the LM25119 solution, we are currently facing an issue: When converting 24V to 12V to power an external graphics card, in light load mode, the 12V will be pulled up to around 15V, causing the system to become abnormal…
    • Answered

  • LM25119-5119QUICK-CALC: LM25119 Simulation Failed -- Sim Type: Steady State Sim ID: 3

    Resolved
    Part Number: LM25119-5119QUICK-CALC Other Parts Discussed in Thread: LM25119 The simulation is failing when using WEBENCH for LM25119. It also downloads empty file for Altium WBDesign5.zip
    • Resolved

  • LM25119: LM25119 output voltage will abnormally rise when in the light-load mode.

    TI Thinks Resolved
    Part Number: LM25119 hi, Currently, the LM25119 scheme is selected. The 24V input is converted to a 12V output, and an external graphics card device is connected. When entering the Windows system desktop, an oscilloscope was used to measure the output…

  • LM25119: Questions about LM25119 VCC using external power supply

    Part Number: LM25119 Tool/software: Hi Team, Customer wants to use external 12V power supply for LM25119 VCC with below circuit, but they wants to know if there is any powering on sequence requirements for VIN and external 12V? Thanks.

  • LM25119: The current noise for LM25119

    Part Number: LM25119 Tool/software: Hi, We use the LM25119 for the DC/DC circuit, and we hard the current noise for the LM25119, the light load of the nosie is relatively loud and the heavy load is small; please kindly review our schematic and avise…
    • Answered

  • LM25116: LM25119 vout pin connection in remote sensing

    Resolved
    Part Number: LM25116 I would like to design a buck converter using the LM25116, but I am not entirely clear about the role of the VOUT pin in output regulation beyond the FB pin. In my design, I am considering two mounting variants. In the first one…
    • Resolved
    • Answered

  • RE: WEBENCH-CIRCUIT-DESIGNER: WeBench simulation of LM25119-Q1 reports Vout1=5.0V but Vout1 graph shows 4.7V (+/-10mV)

    Resolved
    Hi Sateesh, Thank you very much for identifying the problem. This is much appreciated. Steve Carpenter

  • LM25119: High step down - high output current - non isolated converter

    Part Number: LM25119 Other Parts Discussed in Thread: LM5143 Tool/software: Good morning, we need to design a dc/dc converter with the following specs: Vin = 24V +/- 10% Vout = 5.1V - 40A The converter should possibly be non isolated, and we need…

  • LM25119: EN2 PIN

    Part Number: LM25119 Tool/software: Hi TI , I would like to Know about LM25119 EN2 PIN, According to SPEC , It Seems to pull up 50k ohm Internally , When I used an oscilloscope to measure, I obtained 4.5V. May I know more information about how…
    • Answered

  • LM25119: Regarding the VCC capacitor

    Resolved
    Part Number: LM25119 Tool/software: Hello, I would like to ask you a question about the LM25119's VCC capacitor capacitance. Is there an upper limit to the VCC capacitor capacitance? In the circuit I created, when the load is suddenly increased, VCC…
    • Resolved

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