• RE: ADP2120 exposed pad

    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,
  • Question for your ADP2120

    Dear Sir/Madam,

    I have a question for you.

    As for your ADP2120 switching power device,

    If there is no load on output side, does the input voltage appear to the output side directly?

    This means that the p-ch FET is always ON, I think.


  • Load fluctuation data for ADP2120

    Dear Sir/Madam,

    Do you have the data of the load fluctuation for ADP2120?

    eg; 0.2A --->  1A curent grow up as transient.

    I cant find it on your datasheet.

    Only found 0A at max output on Fig.24,27, it is the load transient.

    Thanks Kaos

  • ADP2120 operating in a discontinuous mode when synchronized.

    I have an ADP2120 circuit that is operating it what looks like a discontinuous mode, but is synchronized to an input clock.

    The circuit is a 5V to 3.3 V circuit using the component values I got from ADIsimPower. The current draw on the 3.3V varies vs…

  • ADP2120 max Cout


    What is the max recommended output capacitance allowed on the ADP2120?  The datasheet specifies a min of 22uF, but can another 100uF or 200uF cap be added to this Cout distributed elsewhere on a board?  At what output capacitance woudld the device…

  • RE: Questions about Power circuit design of ADRV9026/ADRV9029 using Feritte beads

    Q1: Yes, it is recommended to use all ferrite beads as per the EVM schematic.

    Q2: The use of ferrite beads is to filter high frequency power supply noise and cleanly sharing similar supply rails.

    Q3: Not sure if i understand your question correctly. The…

  • ADIsimPower Design Tools Download

    IC                  Design Tool                                                                    Download Tool  URL

    LDOs            ADI Linear Regulator Design Tool and Parametric Search  http://download.analog.com/PMP/ADI_LinearRegulators.zip

    ADP1612     ADP161x Boost Regulator Design Tool http://download.analog.com/PMP/ADP161x_BoostDesigner.zip

  • RE: Minimum Inductor Value of ADP2118


    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…

  • RE: ADP2138 Current Limit Details


    as you mentioned since the ADP2138 does not have a Pgood signal the only way to now if you have reached a current limit condition is to monitor the output voltage externally. But even in that condition the output could be only slightly out of…

  • RE: ADSP-2148x E-pad question

    I use a 2.2mm center hole. This is sufficient for hand soldering. A 5mm hole is much too big.

    On the 100 pin 21489, I used 24 sounding vias with 0.2mm holes

    For hand soldering, we start with a small heater, Hakko FR-830. This preheats the board for…