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  • LM25575 Inverting Buck-Boost Design

    • Resolved
    Hi We have designed a couple of power supplies (±7.0VDC/0.70A) based on the LM25575 device

  • RE: LM25575 Schottky diode failure on +12Vdc -> -12Vdc conversion

    Re, I have mistake to join you a plot of the -12V potential: All scopes have been performed with a differential voltage probe with a gain of 1/10. Regards, Alexandre

  • LM25575 as a buck boost regulator

    • Resolved
    with the WEBENCH tool, LM25575 appeared to be a solution. Can -18V be obtained from +12V using a buck regulator

  • LM25575 current sense pin impedance

    • Resolved
    Could anybody that has access to a board with a LM25575 switcher be so kind to measure

  • LM25575 inverting buck-boost mode

    • Resolved
    Hello, I am designing a +/-12VDC supply based on LM25575 converters used in cascade. The topology

  • Input Current vs. Output Current LM25575

    • Resolved
    I'm using a LM25575 to deliver 3.3 Volts with a average load of 1A. It's all ok, but if the load

  • Voltage out of LM25575 (5V Vout), drops 0.5V with very little load

    • Resolved
    recommended a LM25575 for the 5V rail. My input is from a rectified 24VAC source. Without a load or very

  • RE: LM25574 sync duty cycle

    Because the LM25575 input pin apparently has an active drive to ground, will that not charge the capacitor to the state where it will continue to hold the sync pin at ground when the internal circuitry reverts to weak pullup? Note that the datasheet recommends...

  • Question about the LM3150 ripple injection circuit

    • Resolved
    Hi, I'd like to ask about the need of external ripple injection circuit for LM3150. According to the attached PDF file page 14, It saids that we need the external ripple injection circuit when the output voltage is 12V or above for proper regulation. I get some questions as follows, ・Could someone...

  • RE: PWM chip selection

    Hi, I've attached the 2013 User's Guide for power products. Starting on page 53 you will find a selection of PWM controllers. many of these teh frequency can be varied according to external criteria. As an example if you use a UC3842 it is...
    • 2013 Power Management Guide.pdf

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