• LTM8055

    Hi

    I am using this umodule, in order to get 24V 6A from 18V-36V. I noticed that when the current is more than 3A, VOUT starts to derate to 14V and less. I a dont limit current in or out.

    I also noticed that efficiency is ~60%.

     

    When I checked the…

  • LTM8055 Demo DC2017A can't output 12V when input is 5V

    hello all,

        I have a LTM8055 Demo DC2017A, the LTM8055 datasheet shows input can be +5V, but when I add +5V to DC2017A input, the output is only 1.65V; when I rise the input voltage above 5.7V, the output is 12V corrently. 

        where is the problem? Could…

  • LTM8055输入5V时,输出不正常

    你好,我买了一块LTM8055的Demo板,Vin范围为5V-36V,Vout为12V,输入接5V时,输出只有1.65V;输入接6V时,输出为12V。

    请问是什么问题导致的?LTM8055不是可以5V输入吗?

  • RE: LTM8055 Quiescent Current

    The spec in the data sheet is for the following condition:
    fsw = 300kHz (RT = 84.5k ohm)
    Vin = 12V
    Vout = 12V 

    Because the internal LDO is powered by VIN, the LDO’s power loss increases with VIN (increased voltage drop across LDO).  Also, an increase…

  • RE: LTM8055 Soft-start

    Hi Hiroyuki-san,

    Feedback from design: Unfortunately, there is no equation.  The SS cap clamps the VC node, but the voltage at which the switching starts and the regulator comes into regulation varies with the IC and is also dependent upon the load.

  • Ripple Noise of LTM8055 DC2017A

    Hi

    Regarding LTM8055 data sheet, I can see the output ripple noise is very low as follows.

    However our customer measured the noise on the demo board DC2017A as follows. The ripple noise is 588mVp-p at Vout=12V, Iout=1.2A.

    Off course the probe setting…

  • what's the relationship between the output current limit and input current limit of LTM8055?

    "The maximum output current depends upon the input voltage. Higher input voltages yield higher maximum output current."

    why? just because of the more input power with higher Vin?

    the largest output current is 8.5A, so what's the largest input…

  • Two LTM8055 Peripheral circuit

    Hi,

    My customers are thinking about using two LTM 8055.

    Therefore, They decided to draw a circuit by the composition of data sheet P.20.
    There is a LT1636 between the two LTM 8055.

    #1  In the case of the circuit configuration shown below, is there a detailed…

  • 怎样使用LTM8055-用作锂电池充电器

    在一些文档中有写LTM8055可用于电池充电,在使用过程中是怎么操作、设置的?有什么注意事项??

    给锂电池的充电过程是怎样的?

  • Are electrolytic capacitors required for Cout of LTM8055?

    Regarding the LTM8055,

    Table 1, on Page 10 of the datasheet, recommends the use of electrolytic capacitors for Cout for all combinations of input and output voltages. Is that necessary for stability or is it just perceived to be a more cost effective…