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LTC3330 If not using buck-boost converter, float Pins SWA and SWB ?

Hi,

I am using the LTC3330 simply as a buck converter for now. I don't intend to use the buck-boost converter and shall be tying its input BAT (Pin #16) to GND. My questions are,

1) Can Pins #14 and #15 be kept floating ? (I want to avoid the buck-boost converter's inductor connected between these two terminals). 

2) Since I am not using buck-boost, can I simply GND the Pins #17, #18 and #19 used to selected the limiting current for the buck-boost converter ? In the demo-board (DC 2048A), these pins are tied to GND via three zero Ohm SMD resistors ? Is it necessary to use these resistors ?

Thank you.

Parents
  • Hi,

    for question 2. Since it is a demoboard, it gives the option of utilizing every function it has, thus it has a zero ohm resistor. These are not necessary if you have a specific design that would not need them.

    for question 1, please refer to page 25 & 26 of the datasheet. Provided below are the snipped content of the pages.

    Regards,

    Jhun

Reply
  • Hi,

    for question 2. Since it is a demoboard, it gives the option of utilizing every function it has, thus it has a zero ohm resistor. These are not necessary if you have a specific design that would not need them.

    for question 1, please refer to page 25 & 26 of the datasheet. Provided below are the snipped content of the pages.

    Regards,

    Jhun

Children
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