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Showing 97 results View by: Thread Post Sort by
    Answered
  • LMR62421: Boost Converter to drive Motor Inrush Current Properly

    Brian Neltner
    Brian Neltner
    Resolved
    Part Number: LMR62421 Other Parts Discussed in Thread: BQ25060 Hello, I am using the LMR62421XMF in a battery powered motor driver. The battery is a standard 18650 Li-ion that I let charge/discharge between 2.8V and 4.2V. I added FL1 to reduce boost…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • LMR62421: Not boosting

    hilal a
    hilal a
    Part Number: LMR62421 Other Parts Discussed in Thread: LMR64010 , I am using LMR62421XMF/NO regulator to boost from Li ion battery 3.7 V to 12V . I had checked the switching output but no pulsing i can see . Also i am cascading two boost regulator …
    • over 4 years ago
    • Power management
    • Power management forum
  • LMR62421: LMR62421 not functioning for 7.5v @300mA (3.3V battery input)

    Yogesh kondawar
    Yogesh kondawar
    TI Thinks Resolved
    Part Number: LMR62421 We used LMR62421 SOT package to drive 4 LED with Vf 6v @ 50mA. Somehow, LMR output voltage drops to 6.4v. LMR is configured for 7.5v output. Is there any limitations. we used 10uF output cap. we also tried 22uF and 470uF output cap…
    • over 5 years ago
    • Power management
    • Power management forum
  • Answered
  • LMR62421: seeing voltage on the output when EN is low

    Mike Sprauve
    Mike Sprauve
    Resolved
    Part Number: LMR62421 Other Parts Discussed in Thread: LM2735 Hi, I am seeing 3.3V on the output of the LMR62421 with the enable is low. The voltage seems to be a diode drop value of the input voltage so I am not sure what is going on. I have attached…
    • Resolved
    • over 3 years ago
    • Power management
    • Power management forum
  • LMR62421: How to get 2.1 amp maximum output current of the IC

    zuhaib choudhary
    zuhaib choudhary
    TI Thinks Resolved
    Part Number: LMR62421 Other Parts Discussed in Thread: TPS61033 , , TPS61022 , TPS61288 I want to know that the IC claims that it can deliver upto 2.1 AMPS of current ,can anyone please let me know the input and output for that? my second question…
    • over 3 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: WEBENCH® Tools/LMR62421: LMR62421 Max current at 24V output 5V input

    Garrett Roecker
    Garrett Roecker
    Resolved
    Hi Muhammad, Thanks of reaching out with your questions and for using the LMR62421. I have contacted the engineer supporting this device and he should respond shortly. Thnaks, Garrett
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • LMR62421: LMR62421 output

    Eric Shen42
    Eric Shen42
    Resolved
    Part Number: LMR62421 Dear TI: My customer would like to know whether LMR62421 will have a sudden increase in output under certain conditions.Such as normal output 9V, abnormal output peak pulse voltage 12V. Do output anomalies occur when the input voltage…
    • Resolved
    • over 7 years ago
    • Power management
    • Power management forum
  • LMR62421: Power supplying LMR62421 from launchpad f28379D

    mike uasauski
    mike uasauski
    TI Thinks Resolved
    Part Number: LMR62421 Other Parts Discussed in Thread: LAUNCHXL-F28379D Hi TI, I wanted to know what current the boost converter that is in the launchpad XL F28379D delivers to the output, which is formed by an LMR62421 regulator that converts from 3…
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • LMR62421: Low-Pass Output Filter Problem

    Matthew Anauo
    Matthew Anauo
    Resolved
    Part Number: LMR62421 Hi, I have the following design using the LMR62421 to boost a 4.5V input to a 12V output, with a nominal load of ~100mA, and a damped LC low-pass filter on the output: As-is, the output only approaches 12V measuring an open circuit…
    • Resolved
    • over 4 years ago
    • Power management
    • Power management forum
  • LMR62421: circuit breakdown

    Nicolas Casella
    Nicolas Casella
    TI Thinks Resolved
    Part Number: LMR62421 Hi, I have an issue with a circuit implementing LMR62421XSD/NOPB. It is used to boost voltage from 5V to 18V. The 18V is delivered to 3 LDOs. The circuit was designed with Webench, with a small reduction of the inductance. The circuit…
    • over 5 years ago
    • Power management
    • Power management forum
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