• RE: ADP2138 Current Limit Details

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
  • RE: ADP2138 fails permanently when enable toggles quickly

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
  • About ADP2138/39

    Hi there,

    I have questions about ADP2138/ADP2129.

    Regarding, ENpin and Modepin, these pins have either internal pull up  or pull down?

    If so, please let me know whether it is pull-up or pull-down ?

    http://www.analog.com/media/en/technical-documentation…

  • Adjustable vs. fixed voltage option

    Some parts are available as fixed output voltage options. Can I adjust the output voltage anyway?

    This is a question that comes up often with parts like the ADP2108, ADP2109 or ADP2138, ADP2139 that do not have an adjustable version available.

    As a general…

  • ADP5023 - ADIsimPower Simulation Tool

    Hello,

    My name is Meir and I am  DFAE from Phoenix technologies in Israel.

    One of my customers would like to simulate the ADP5023 by using the excell based ADIsimPower simulator.

    As I understuood, the BUCKs of ADP5023 are based on ADP2138 core, is it…

  • RE: ADP5023 power design support tool

    Kaos,

    the ADP5023 is a combination of 2x ADP2138 + LDO.

    You can use the ADP2138 design tool to get you to a design for the ADP5023 switching channel.

    Best Regards,

    LucaV

  • RE: ADP5034 ADIsimPower Simulate File

    Hi Jacky,

    You could use the "ADP21xx Buck Regulator Design Tool" as it covers the ADP2138 3MHz Buck regulator which is similar to the ADP5034 Bucks. Be wary though that the ADP2138 maximum load current is only at 800mA, so when you enter in the design…

  • RE: Can the ADP2370/ADP2371 be used with lithium thionyl chloride cells to step down 3.6V to 3.3V?

    The ADP2370/ADP2371 may not be able to step down 3.6V to 3.3V if the output current is high, say >0.5A, due to the power losses in the IC and the inductor.

    The design tool is available at :ADP237x Buck Regulator Design Tool

    you could also try some…

  • RE: Load fluctuation data for ADP2120

    Kaos,

    load transient depends on the ammount of capacitance added to the output.

    You may want to consider using the ADP2120 design tool to identify how much capacitance you will need for a specific transient requirement.

    ADP21xx Buck Regulator Design…

  • RE: Minimum Inductor Value of ADP2118

    Tarzan,

    the min inductor value for the ADP2118 is around 1.5uH. It is not described in the datasheet because different inductors (even if specified at 1.5uH) may have lower inductance at full load.

    The best way to determin the min inductance for the…