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  • LM5117: LM5117 0 V Output

    TI Thinks Resolved
    Part Number: LM5117 Other Parts Discussed in Thread: CSD18511KTT Hi, I have tried to use LM5117 to convert 28 V to 22 Volts. I have 1.45 V as UVLO, and it seems Lo on the oscilloscope is around 8.4 Volts, but the HO is 0. My feedback voltage is 0…

  • LM5117: LM5117 Question

    TI Thinks Resolved
    Part Number: LM5117 Hi, I am using the LM5117 IC as a buck converter: Input Voltage: 37-53V Output Voltage: 27.5V Load resistance: 4.05 – 4.8 ohm (4.45ohm nominal) Load current: 5.73A – 6.79A (6.18A nominal) Load Power: 157W – 187W (170W nominal…

  • LM5117: LM5117 restarts at lower current than expected

    TI Thinks Resolved
    Part Number: LM5117 Hello, My LM5117 converter is designed to step-down a 18V (5-cells) Li-ion battery voltage to 15.8V for a powertool that usually accepts a 14V (4-cells) Li-ion battery. Max current is 80A during 100ms. When I test my design with…
    • Answered

  • LM5117: LM5117 triggers the hiccup mode at lower current than expected

    Resolved
    Part Number: LM5117 Other Parts Discussed in Thread: LM25148 Hello, Previous thread: https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1587527/lm5117-lm5117-restarts-at-lower-current-than-expected Following…
    • Resolved

  • LM5117-Q1: LM5117

    TI Thinks Resolved
    Part Number: LM5117-Q1 Other Parts Discussed in Thread: LM5117 Tool/software: Hello I am using LM5117 with switching freq 480KHZin my ECU during Radiated emission in 966KHZ and 160MHZ. When I checked with near field probe I am getting the emissions source…
    • Answered

  • LM5117: Process Technology?

    Resolved
    Part Number: LM5117 Hello - is there a TI website page where I can enter a part number, and see what IC process and failure rates are for that part? I've been hunting around but came up short. If not, I'd like to get this information for 4-5 parts I'm…
    • Resolved

  • LM5117: Hot Loop Input Capacitor

    TI Thinks Resolved
    Part Number: LM5117 Hello! Thank you for your time and efforts. I wanted to get your input on this potential solution to reduce the EMI radiated by this switching converter. Normally I would consider the hot loop to be between CIN, HSFET, LSFET…
    • Answered

  • LM5117: Webench simulation fails

    Resolved
    Part Number: LM5117 Hi, I am trying to simulate a circuit for LM5117 in Webench, but all simulations fail: Any idea why that is the case? Is this device not supported for Webench simulation? What is the recommended way to simulate? Best reg…
    • Resolved

  • LM5117QUICK-CALC: Inquiry Regarding Intermittent Startup Failure of LM5117

    Part Number: LM5117QUICK-CALC Other Parts Discussed in Thread: LM5117 Hi Team, We have observed an intermittent startup issue in an LM5117-based buck converter. Although the input voltage is present and within the specified operating range, the…
    • Answered

  • LM5117-Q1: LM5117-Q1

    Resolved
    Part Number: LM5117-Q1 Tool/software: I am using LM5117PMHX/NOPB IC and following this schematic from LM25117 Evaluation Board . I designed it for 12V output but I am getting ~2.7V output which is a problem, I have tried few solution but nothing…
    • Resolved

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