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Re: Ever smaller DC-DC converter modules by TI

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On a sunny day (Sun, 1 Sep 2024 17:43:26 +0200) it happened Arie de Muijnck
<noreply@ademu.nl> wrote in <nnd$2f75283c$0bf25191@b9829d5a22e7a1d0>:

>On 2024-09-01 17:29, Arie de Muijnck wrote:
>> On 2024-09-01 16:35, john larkin wrote:
>>> Jan Panteltje <alien@comet.invalid> wrote:
>>>> Ever smaller DC-DC converter modules by TI:
>>>>  
>>>> https://www.electronicdesign.com/technologies/power/article/55134121/electronic-design-tis-magnetic-materials-and-packaging-magic-help-slash-dc-dc-module-size-even-further
>>>> This innovation is based largely, but not entirely,
>>>> on advances in magnetic materials,
>>>> and it didn’t come quickly.
>>>> Noted Jeff Morroni, director of power management research and development
>>>> at TI's Kilby Labs,
>>>>
>>>> For example:
>>>> 1.8 to 5.5V in to 5.5V out at 5.5A size 2.5 x 2.6 mm boost module
>>>> More examples in link.
>>>>
>>>
>>> 1W isolated 5 -> 3.3V, 4x5x1 mm, SS, *76 MHz* switching frequency, for
>>> $1.50 @ 1ku?
>>>
>>> Potentially pretty cool!
>>>
>>> Cheers
>>>
>>> Phil Hobbs
>>>
>> 
>> I noticed in the datasheet to avoid disabling it under full load.
>> To me that reads the shrapnel would reach the ceiling...
>> 
>> Arie
>
>After better reading the datasheet of the boost converter, TPSM81033, most interesting for me right now.
>And not disabling but removing the input voltage. Like with the good old LM78xx regulators.
>
>"
>Device Limitations (intended to be removed for final material):
>1. Inductor current limit function is not optimized. TI don't recommend to use TPSM81033 at the
>condition that the input current is higher than 5A. Final material is expected to improve the current
>limit function.
>2. TPSM81033 doesn't support to remove input voltage at heavy load. TI recommend to remove
>input voltage at no load, or connect EN to GND first with load and then remove input voltage. Final
>material is expected to support remove input voltage at heavy load.
"

That sure is a big limitation!

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Thread

Ever smaller DC-DC converter modules by TI Jan Panteltje <alien@comet.invalid> - 2024-09-01 13:07 +0000
  Re: Ever smaller DC-DC converter modules by TI Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2024-09-01 13:37 +0000
    Re: Ever smaller DC-DC converter modules by TI john larkin <jlarkin_highland_tech> - 2024-09-01 07:35 -0700
    Re: Ever smaller DC-DC converter modules by TI Arie de Muijnck <noreply@ademu.nl> - 2024-09-01 17:29 +0200
      Re: Ever smaller DC-DC converter modules by TI Arie de Muijnck <noreply@ademu.nl> - 2024-09-01 17:43 +0200
        Re: Ever smaller DC-DC converter modules by TI Jan Panteltje <alien@comet.invalid> - 2024-09-02 02:15 +0000
          Re: Ever smaller DC-DC converter modules by TI David Lesher <wb8foz@panix.com> - 2024-09-02 02:53 +0000
          Re: Ever smaller DC-DC converter modules by TI Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2024-09-02 09:07 +0000
            Re: Ever smaller DC-DC converter modules by TI john larkin <jlarkin_highland_tech> - 2024-09-02 09:08 -0700
              Re: Ever smaller DC-DC converter modules by TI Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2024-09-02 16:35 +0000

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