• LTC3115-1

    在使用LTC3115-1过程中,PWM/SYNC这个引脚老是烧掉,与地导通,同时输出电压为零。外围电路是根据datasheet上的电路进行设计的,请问是什么原因导致的呢?

    In the process of using LTC3115-1, the PWM/SYNC pin is always burned, connecting to ground of the system, and the output voltage is zero. The peripheral circuit is…

  • Power IC LTC3115-1

    在使用LTC3115-1过程中,PWM/SYNC这个引脚老是烧掉,与地导通,同时输出电压为零。外围电路是根据datasheet上的电路进行设计的,请问是什么原因导致的呢?

    In the process of using LTC3115-1, the PWM/SYNC pin is always burned, connecting to ground of the system, and the output voltage is zero. The peripheral circuit is…

  • POWER IC-LTC3115-1

    在使用LTC3115-1过程中,PWM/SYNC这个引脚老是烧掉,与地导通,同时输出电压为零。外围电路是根据datasheet上的电路进行设计的,请问是什么原因导致的呢?

    In the process of using LTC3115-1, the PWM/SYNC pin is always burned, connecting to ground of the system, and the output voltage is zero. The peripheral circuit is…

  • LTC3115-1 have hiccup mode?

    Hi

    I'm a DFAE in Japan. Our customer evaluates LTC3115-1 and faces similar to hiccup mode (Vo is up and down)  when Vin=4V, Vo=12V and IO>200mA. The power supply design spec is Vin=4V~32V, Vo=12V and Io=300mA. It seems that the load current that…

  • LTC3115-1 questions on layout, bypassing

    Hello, 

    A couple of questions about the LTC3115-1, after noting that oscillations occur on either side of the switch depending on buck vs. boost mode: 

    1. Is this the reason that Layout recommendation is to put GND plane below and around the inductor – as…
  • LTC3115-1 How to generate Bode-Plot in LTSpice

    Hello. I want to ask some help, in data sheet on page 26 there is notice that we should use Bode plot to design loop compensation circuit. I've read topic in LTSpice help how to generate Bode plot, but I can't simulate scheme in a proper way. Simulation…

  • Is the LTC3115-1 thermal shutdown meant to protect the chip?

    Is the LTC3115-1 thermal shutdown meant to protect the chip from excessive load or short circuit? 

    Thermal shutdown occurs at  ~165°C, but the absolute max is 125°C or 150°C depending upon the package.

    I am using the LTC3115EDHD-1#PBF or 125°C package…

  • LTC3115-1输出只有1.8V

    我根据LTC3115数据手册上的参考电路输出24V/1.5A,一共加工了5块板,只有1块好的,其余4块输出都只有1.7~1.8V,元器件都是一样的,大致什么原因呢?

  • LTC3115-1 Three questions about compensation, kelvin connection and optional schottky diode

    Dear Sir/Madam,

    After carefully read the datasheet of LTC3115-1, I have three questions:

    1. About the type iii compensation.

    In the Applications Information part, the datasheet says that a type III compensation network is desired (page 24, Fig. 9). However…

  • LTC3115 compensation design

    Dears,

    We are designing one boost DC, with 3.6-7.2v battery input, we wish to get 13.8v/1A output. Preliminary we choose LTC3115-1 

    From the datasheet, we set the Rtop=3.2M and Rbot=249k, F=1M, L=47uH etc...but we can not find exactly discription about…