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Showing 67 results View by: Thread Post Sort by
    Answered
  • LM61440-Q1: Using LM61440

    Denis EBERHARDT
    Denis EBERHARDT
    Resolved
    Part Number: LM61440-Q1 Other Parts Discussed in Thread: LM61440 Tool/software: Hello Expert Team, I would like to use this DC-DC Converter LM61440 with 24V input and 12V / 4A output. Do you have an example of application circuit with all components…
    • Resolved
    • 6 months ago
    • Power management
    • Power management forum
  • Answered
  • LM61440-Q1: LM61440 Softstart specifications

    NAOAKI SAIMEN
    NAOAKI SAIMEN
    Resolved
    Part Number: LM61440-Q1 Tool/software: Hi. I'm NAOAKI. I am trying to use the LM61440-Q1 as a 24V-5V back converter. I have a question in the datasheet. Is there any startup problem even if Cout of 5V is attached with 1500uF? Also, please explain…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • LM61440-Q1: Specifications for LM61440 at lowest VIN operation

    NAOAKI SAIMEN
    NAOAKI SAIMEN
    Resolved
    Part Number: LM61440-Q1 Other Parts Discussed in Thread: LM61440 Tool/software: Hellow. I'm NAOAKI. I have a question about the description in the datasheet. VIN_OPERATE means I want to know the voltage at which the LM61140 is reliably stopped.…
    • Resolved
    • 9 months ago
    • Power management
    • Power management forum
  • LM61440-Q1: VCC pin and pullup resistor

    Ethan Liu
    Ethan Liu
    TI Thinks Resolved
    Part Number: LM61440-Q1 Tool/software: Hi team, Regarding the VCC pin of LM61440-Q1, below explain <this output can be used to supply for the power-good function by pullup resistor> However, in our block diagram, the pullup resistor of PGOOD pin is…
    • 8 months ago
    • Power management
    • Power management forum
  • LM61440-Q1: Auto mode FPWM and PFM

    Frank QIN
    Frank QIN
    TI Thinks Resolved
    Part Number: LM61440-Q1 Tool/software: Hi Team, We would like to check LM61440-Q1 auto mode, what is the threshold for FPWM and PFM mode switching? Is there an output current limit would consider as the switching point? And will our ATE test have this…
    • over 1 year ago
    • Power management
    • Power management forum
  • LM61440-Q1: Simulation problem with WEBENCH values

    Yael Reajev
    Yael Reajev
    TI Thinks Resolved
    Part Number: LM61440-Q1 Tool/software: Hello, I used in WEBENCH this part; Input= 4V to 22V, output = 3.3V, 0.5A and got frequencies that are lower than 200KHz as defined in the datasheet. When simulated using LM61440AFS-Q1 PSpice Transient Model…
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • LM61440-Q1: loop stability test at light load failed

    guangmin zuo
    guangmin zuo
    Resolved
    Part Number: LM61440-Q1 Tool/software: Hello expert , we used LM61440AASQRJRRQ1 in our project , currently we tested the loop stability of this circuit , as the load is disabled so we test at light load (current =0A) the result is failed the output…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • LM61440-Q1: A few small questions about the spec of LM61440-Q1.

    Alan Xia
    Alan Xia
    TI Thinks Resolved
    Part Number: LM61440-Q1 Other Parts Discussed in Thread: LM61440 Hi team, The customer has a few small questions about the spec of the LM61440-Q1. 1. The working voltage of the LM61440 IC is above 3V, and the initial turn-on voltage is 3.95V, right…
    • over 2 years ago
    • Power management
    • Power management forum
  • LM61440-Q1: Ways to speed up startup?

    Alan Xia
    Alan Xia
    TI Thinks Resolved
    Part Number: LM61440-Q1 Hi team, The customer uses LM61440-Q1 to power the MCU, and the MCU has requirements for the power-on time of the LM61440-Q1. At present, the power-on time of LM61440-Q1 is about 6ms, and the MCU requires 2ms. Is there anything…
    • over 2 years ago
    • Power management
    • Power management forum
  • LM61440-Q1: Bootstrap capacitor

    xiaoming.tan
    xiaoming.tan
    TI Thinks Resolved
    Part Number: LM61440-Q1 Hi team, About the Bootstrap capacitor, in datasheet, it is recommended to choose a capacitor of 100nF, I want to know what is the range of values of a capacitor? If I choose 10nF or 1uF, what will be the impact?
    • over 2 years ago
    • Power management
    • Power management forum
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