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Showing 31 results View by: Thread Post Sort by
  • LMR61428: Seeking assistance in picking the right part

    James Wood
    James Wood
    TI Thinks Resolved
    Part Number: LMR61428 I'm an old-school developer with mostly linear-regulator experience and am looking for tips on picking the right 'boost' switching regulator for a specific project. It needs to take +5V in, either from a wall-wart or a battery, and…
    • over 1 year ago
    • Power management
    • Power management forum
  • LMR61428: 7 - 12Vin, 13.2Vout - What max current?

    T_DK
    T_DK
    TI Thinks Resolved
    Part Number: LMR61428 Other Parts Discussed in Thread: LMR62014 I have an operating issue that is not covered by the datasheet. I have a variable 7 to 12V in and needs 13.2V out. What current can I expect out? The LMR61428 should be rated for 2.8A, but…
    • over 3 years ago
    • Power management
    • Power management forum
  • LMR61428: Lmr61428 boot strap issue

    chandra prakash arora
    chandra prakash arora
    TI Thinks Resolved
    Part Number: LMR61428 Dear sir , I am not able to achieve boot strap operation in sample circuit mentioned in you detail document-SNVS815 on page no. 2& 12. But I m getting good result of boot strap in evaluation module i purchased from TI company.…
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • LMR61428: In case of light load

    Hirotaka Matsumoto
    Hirotaka Matsumoto
    Resolved
    Part Number: LMR61428 Hi all Would you mind if we ask LMR61428? In case of light load, does LMR61428 operate PFM function? Is it possible to use as fixed PWM function? Kind regards, Hirotaka Matsumoto
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
  • LMR61428 Startup Issue

    Soccer Wang
    Soccer Wang
    Other Parts Discussed in Thread: LMR61428 LMR61428 Schematic.pdf LMR61428 Startup Waveforms.zip As attached are the related layout and schematic. The input voltage range of LMR61428 is 3.5V to 6V, and the output voltage is set as 8V by the resistor…
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • LMR61428 - output capacitance

    Hirotaka Matsumoto
    Hirotaka Matsumoto
    Resolved
    Other Parts Discussed in Thread: LMR61428 Hi all Would you mind if we ask LMR61428? The datasheet shows the following; While tantalum chip capacitors are recommended for the input and output filter capacitors, ceramic caps can also be used. Is it possible…
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: LM2623: /LM51501-Q1 - Boost 1.8-3.1 V to 6V 400mA

    Eric Yue
    Eric Yue
    Resolved
    Hi Tom, LMR61428 can be used in this application, because its control scheme uses a hysteresis window to regulate the output voltage. When the output voltage is below the upper threshold of the window, the LMR61428 switches continuously with a fixed duty…
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • LMR61428 - Minimum on time or Minimum off time

    Hirotaka Matsumoto
    Hirotaka Matsumoto
    Resolved
    Other Parts Discussed in Thread: LMR61428 Hi all Would you mind if we ask LMR61428? Our customer's condioton is as follows; -Vin=3.5V -Vout=4.2V -Iout=1.2A Our customer would like to calculate Maximum Fsw. However we could not find Minimum on time or Minimum…
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • My question is related to LMR61428 IC constant voltage output at low input voltage.

    chandra prakash arora
    chandra prakash arora
    Resolved
    Other Parts Discussed in Thread: LMR61428 , LMR61428XMMEVM Sir I purchased LMR61428 IC and LMR61428 Evaluation Module LMR61428XMMEVM , When I assembled the LMR61428 IC Circuit on PCB I am getting Vout ==3.3 times of Vinput. But in Evaluation module I am getting…
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: LM2623: Controller selection help

    Eric Yue
    Eric Yue
    Resolved
    Hi Matt, LMR61428 is suitable as well, but out of stock. There are not many options, because input voltage is low to 1.8V and output current is not very small.
    • over 1 year ago
    • Power management
    • Power management forum
>

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