TLE7274D analysis and simulation help!

Discussion in 'General Electronics Chat' started by kevindd992002, Mar 29, 2011.

  1. kevindd992002

    Thread Starter Member

    Nov 23, 2010
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    I have a schematic circuit of the Infineon TLE7274D LDO chip that came from a reverse engineering process. It can be viewed by Cadence. I need to simulate it and make the output as close to the target (5V regulated) as possible. When I simulate it using the test-setup presented in the datasheet ( http://www.alldatasheet.com/datasheet-pdf/pdf/153286/INFINEON/TLE7274D.html ), it doesn't work and it ouputs only about 1.5V. I don't know what's the problem since I'm not a good circuit analyzer. Please help me :(

    I can send you the files needed to be viewed in Cadence for this matter.

    Thanks.
     
  2. SgtWookie

    Expert

    Jul 17, 2007
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  3. kevindd992002

    Thread Starter Member

    Nov 23, 2010
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    0
    Hmm, the circuit contains many blocks and those blocks contain other blocks. So there are many levels in the circuit. A screenshot will be useless I guess :(
     
  4. SgtWookie

    Expert

    Jul 17, 2007
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    What's your input voltage, and what's your output load?

    You need at least 6v in, and your output load needs to be <= 300mA. You also need to follow the recommendations for the filter/bypass caps. Some of these LDO regulators are mighty particular about the size and type of caps.
     
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