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  • LM25148-Q1: BOOT UVLO operation

    TI Thinks Resolved
    Part Number: LM25148-Q1 Hello support team, Please tell me about the operation when BOOT UVLO is detected. (V BOOT-SW drops to 2.5V) What if the VIN is low and V BOOT-SW does not recover to 2.7V? Thanks,
    • Answered

  • LM25148: Power Good timing when device power up

    Resolved
    Part Number: LM25148 Hi Team, The customer is asking about the pull high timing of Power good pin after the device power up. I can only find the OV and UV response time in the DS. Could you please kindly help on this? Thank you. Best regards, Mike
    • Resolved
    • Answered

  • LM25148: Utilizing Frequency Synchronization and Spread Spectrum

    Resolved
    Part Number: LM25148 Hello, For a design with three LM25148, we are looking to utilize the sync capabilities and spread spectrum of these devices to minimize EMI. Looking at the datasheet, it mentions that Dual Random Spread Spectrum (DRSS) is disabled…
    • Resolved

  • RE: LM25148-Q1: What is the requirement of MOS?

    Hi Jiawei, If you lowered the frequency and did not change the inductor then the inductor pk-pk ripple current ΔIL will be very large and hit peak current limit. The inductor pk-pk ripple current is ΔIL = T_on * (VIN-VOUT)/L. Also T_on = (VOUT…
    • Answered

  • LM25148-Q1: Difference from LM25149-Q1

    Resolved
    Part Number: LM25148-Q1 Other Parts Discussed in Thread: LM25149-Q1 , Hello Team, I have question about LM25148-Q1 vs LM25149-Q1. Q. Are these difference only without AFE(LM25148-Q1) and with AEF(LM25149-Q1)? Q. For dual-phase operation, can we use LM25149…
    • Resolved
    • Answered

  • LM25148-Q1: FET selections and stocked parts

    Resolved
    Part Number: LM25148-Q1 Other Parts Discussed in Thread: CSD18512Q5B , , LM5148-LM25148DESIGN-CALC Hi Using this part in power designer with the following design criteria: 20-28V Vin 12V Vout 4A Iout 125DegC operating This will suggest for instance F…
    • Resolved
    • Answered

  • LM61460-Q1: 42V Auto load dump

    Resolved
    Part Number: LM61460-Q1 Other Parts Discussed in Thread: LM61460 , TPS54561 , LM25148 Hi team, could you help me with this question. the max voltage of LM61460-Q1 is 42V and the feature part describe it support 42V load dump. can I ask how long the device…
    • Resolved
    • Answered

  • LM3150: LM3150

    Resolved
    Part Number: LM3150 Other Parts Discussed in Thread: LM25148 Dear Sir, Equation (22) shown in datasheet page 16, why there is a "220ns" item? Best regards, Genie
    • Resolved
    • Answered

  • RE: LM25145: is LM25145 stackable?

    Resolved
    Fred, note you need an external circuit with the LM5145 (shunt resistors, amplifier, etc.), so the LM25148 overall is lower cost. -- Tim

  • LM5642: To support 40A

    TI Thinks Resolved
    Part Number: LM5642 Other Parts Discussed in Thread: LM25143 , , LM25148 Hi, Could you provide or recommend proper FET or reference circuit to support 40A? Customer already have done the evaluation for 30A with CSD18503 but there is FET damage from 35A…

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