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  • LM22675: How can I bypass LM22675 regulator

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    Part Number: LM22675 Here is a schematic for the LM22675MR-5.0 switching regulator. For testing, I would like to bypass the regulator by feeding 5V from an external supply. Assuming the 12V supply is replaced with a 5V supply which is connected to…
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  • LM22675: Do you have any load transient response waveform of LM22675?

    Resolved
    Part Number: LM22675 Hello guys, One of my customers is evaluating LM22675 for their new products. In the evaluation, they found that the output voltage ripple is large (about 50mV) when output load is changed from 2~3mA to 80mA or from 80mA to 2…
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  • LM22675: The driver board is powered by 15V. After power-on, the indicator is off, and there is no voltage at the G and E terminals

    Part Number: LM22675 After the power supply is powered on, the output of the first stage voltage 15V is normal. After the multimeter is used to test the second stage, a short circuit is found in the 5V and 20V power supply chip U19. After the U19 is removed…
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  • LM22675: Is it possible to use +12Vin and -12Vout

    Resolved
    Part Number: LM22675 Other Parts Discussed in Thread: LMR36510 , LMR38010 Dear Specialists, My customer is considering LM22675 for 12Vin and -12Voutput inverting. They have a question, I would be grateful if you could advise. --- Is it possible…
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  • LM22675-Q1: Can the LM22670-Q1 be used as a replacement?

    TI Thinks Resolved
    Part Number: LM22675-Q1 Other Parts Discussed in Thread: LM22670-Q1 , , LM22675 , LM22670 Team, I'm posting this on behalf of my customer. They would like to know if the LM22670-Q1 can be used as a replacement for the LM2267 5 -Q1? It looks like the…

  • RE: LM22675: About Line reguration question of LM22675.

    Hi Bob, I think we do not have a control on the input, as for the output voltage it seems sound reasonable. Do you have a scope capture of the output voltage ripple? Thanks -Arief

  • LM22675：Why I obeserved 6.4V at EN pin?

    TI Thinks Resolved
    Part Number: LM22675 Hi Expert, I am using LM22675, and I connect EN pin to 24V Vin with a 100kR pull up resistor, and also connect EN pin to GND with a 4.7kR pull down resistor. Then I test the voltage at EN pin, and get 6.4V test result. However…
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  • LM22675: Can't get 5V output, sometimes IC shorts itself and lights on fire

    Resolved
    Part Number: LM22675 Dear Support Engineers, I am trying to make a buck converter that outputs 5V with the LM22675MRZ-5.0/NOPB. I followed the reference design in the datasheet and made this schematic: I then got a couple prototype boards made…
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  • RE: LM22675: LM22675 startup burn

    Your schematic looks OK. I notice that you have two instances of LM22675. Are they both having trouble? You highlighted the one connected to your input connector; I assume that is the one giving trouble? Can you send wave-forms of your startup. Vin…
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  • LM22675: LM22676 Migration

    Resolved
    Part Number: LM22675 Other Parts Discussed in Thread: LM22676 Customer ran into over current conditions with the LM22675 so they are migrating to the LM22676. Just wanted to confirm that the only major differences are maximum output current, current…
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