• 关于ADP2300

    您好，请问ADP2300的IBIS模型在哪里能够得到，我想在开关电源后面加个滤波器降低下输出纹波，想找IBIS模型仿真下，或者如何设计开关电源后面使用LC滤波同时保证开关电源稳定工作，请推荐相关的文档，非常感谢。

  • ADP2300 Negative Output

    I want to convert +12V to -10V. Is this product suitable for this operation?

  • ADP2300 PFM/PWM mode

    Hi,

    I have a queston about ADP2300.
    The Datasheet says this device has the automatic transition between PFM and PWM.
    But I want to konw how much output curennt trigers PFM mode in general.
    Because this device is usd for the analog circuit directly in my…

  • hanges required for using   ADP2300.

    Hi,

    I am currently using RICHTEK -RT8258 for 12VDC to 3.3VDC stepdown in one our product. Now i would like to use ADP2300. But i can't change R1 &R2.  From 100K and 32.4K to 31.6K and 10.2K.  For EN i have directly connected to VIN.Whether the…

  • ADP2300正转负的问题

    打算用ADP2300设计+6V输入，-5V输出的DC/DC转换。设计参考了应用笔记。但是实际测试时发现，外接的电源+6V会被拉低到+3V，且电流达到限制电流，而ADP2300整个的输出是-5V。当输入降低到3V~3.5V时，可以正常工作。请问外接的电源电压为什么会被拉低？还是器件选择上有问题，比如二极管，输入输出电容，电感？

  • ADP1621 and ADP2300/01: positive to negative conversion

    Q 

    I am looking at the DC DC converter ADP1111. My application is to convert +24V
    to -24V.
    Can you please advice me, can this part fulfill my requirement.

     

    A 

    ADP1111 is very old product, and ADP2300/1 is a new one. But looking at the
    …

  • ADP2300 - can I use 'EN' PIN to connect to external PWM source (~20kHz)?

    Hello,

    I would like to use 'EN' pin to control externally the output by connect it to 50% PWN source (uP 3.3V).

    And switch to PWM 100% only in specific cases.

    The external PWM source will have constant frequency  ~20kHz.

    May i connect it to 'EN…

  • ADP2300,使能OFF时不能到0V，输出为2.4V。请问怎么解决？

    ADP2300,使能OFF时不能到0V，输出为2.4V；使能ON的时候，输出正常。请问怎么解决？

    设计输出是5V。
    使能ON时，BST端对地电压是10V，SW对地电压是5V；

    使能OFF时，BST端对地电压是2V，SW对地电压为2.4V。

  • RE: 签个到，送您好礼啦！（获奖名单已公布）

    长春 朝阳区  关注开关电源ADP2300

  • RE: How switching frequency affects to Circuit in step down switching regulators?

    Vaishali,

    there are many variables in selecting the appropriate switching frequency for your design.

    In general with higher frequency the efficiency will be a bit lower but the circuit design will be smaller as long as the duty cycle is not limited…