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  • LMZ31506: used two LMZ31506,frist LMZ31506 PWRGD pin could drive the second LMZ31506 INH/UVLO?

    TI Thinks Resolved
    Part Number: LMZ31506 used two LMZ31506,frist LMZ31506 PWRGD pin could drive the second LMZ31506 INH/UVLO? INH/UVLO pin could direct connect PWRGD pin?
    • Answered

  • LMZ31506: About slow start charging current of LMZ31506

    Resolved
    Part Number: LMZ31506 I designed 9.16 Slow Start (SS/TR) in the LMZ31506 data sheet with Css=4700pF (±10%) and SS time=2.8ms, but the power startup result is 2.2041ms. (See attached waveform) Even taking into account the error of the capacitor, the…
    • Resolved

  • LMZ31506: About slow start of LMZ31506

    TI Thinks Resolved
    Part Number: LMZ31506 Other Parts Discussed in Thread: TPS84621 , TPS84620 , TPS82130 LMZ31506のスロースタートについて教えてください。 LMZ31506のデータシートの9.16 Slow Start (SS/TR)にて、時間とコンデンサの定数の関係についてTable6に記載されていますが、計算方法はどこに記載されていますか？ データシートは下記リンクを参照しております。 www.ti.com/.…
    • Answered

  • LMZ31506: PWRGD not enabling LMZ31503/LMZ31506/TPS7A8801RTJ devices via INH/EN

    Resolved
    Part Number: LMZ31506 We're using an LMZ31506RUQ to generate 1.0V from 5.0V - which it is doing - and then using the PWRGD output of that device to enable 2 LMZ31503RUQ's,1 LMZ31503RUQ, and 1 TPS7A8801RTJ. However, the outputs of these sequenced devices…
    • Resolved

  • LMZ31506: No voltage output from VOUT port

    TI Thinks Resolved
    Part Number: LMZ31506 The board was working fine, but at some point the LMZ31506RUQR's VOUT output (+3.3V) went to 0V. ・When I measured the resistance value between VOUT and GND after it became 0V, it was 1.9Ω. ・The resistance value between VOUT and…
    • Answered

  • LMZ31506: Possibly Hiccup LMZ31506 ?

    Resolved
    Part Number: LMZ31506 Hi, I have built a PCB where a LMZ31506 powers the circuit. The schematic and the layout I found in the datasheet. Inputvoltage is 12V and outputvoltage is 5 V. After applying power to the PCB the outputvoltage of the LMZ31506…
    • Resolved
    • Answered

  • LMZ31506: Power Good output delay

    Resolved
    Part Number: LMZ31506 When LMZ31506 startup, power good output is delayed about 6ms. Please refer below waveform; ※ch1: Vin (5V), ch2: Vout (1.03V), ch3: PWRGD Is there any reason for PWRGD delay? If there detailed schematic, please let me e…
    • Resolved
    • Answered

  • LMZ31506: LMZ31506, LMZ31710 Method of controlling the INH / UVLO pin

    Resolved
    Part Number: LMZ31506 Other Parts Discussed in Thread: LMZ31710 , Can INH / UVLO pins be used with 0V / + 3.3V active controls (CPLDs, power sequencers, etc.) instead of open drains? In this case, a pull-down resistor (about 1k to 10kΩ) is connected…
    • Resolved
    • Answered

  • LMZ31506: SS/TR and PWRGD

    Resolved
    Part Number: LMZ31506 Other Parts Discussed in Thread: LMZ31503 , TPS54320 Greetings, we are attempting to track a 1.8V turn on (LMZ31506) to a 3.3V turn on (LMZ31503). The resistors we've calculated are R1 = 37.8K and R2 = 18.9K. Unfortunately this results…
    • Resolved
    • Answered

  • LMZ31506: Drop in replacement alternatives

    Resolved
    Part Number: LMZ31506 Hi Are the below three parts drop in replacement for one another I am designing a 12 to 5V converter Can I mount any of these for a common circuit TPS84621RUQT LMZ31506RUQT LMZ31506HRUQT …
    • Resolved

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