Re: Cute new part: LMG5126

On Wed, 2 Jul 2025 13:40:56 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2025-07-02 12:36, john larkin wrote:

On Wed, 2 Jul 2025 01:36:04 -0000 (UTC), Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:
 

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

It's a 60-V, 20-A, 2.5 MHz boost with integrated GaN FETs, and claims

>
98% efficiency doing
12->24V

at several amps.
>
It's advanced info, but TI claims that the 1000-pc price will be $4.
I'm looking forward to using it for some Class-H stuff.
>
Check it out!
>
Cheers
>
Phil Hobbs

 
What will you do about the transformer?
 
The local Coilcraft guy is coming over this morning. He could buy us
lunch.

>
Nice day for it, according to Accuweather.(*)

We're hoping it might get up to 60F today.

Sunday was Gay Freezing Day here. Sequins turn out to be not very good
thermal insulation.

>

Their planar transformers could be made into some screaming fast
parts.

>
For 0.01% of their customers. ;)

Megahertz GaN power is a big deal lately. They need small, low loss,
well shielded transformers.

>
What I want it for is all unipolar, so just the fast regulator plus a
linear stage is the ticket.
>
I might use something like a 48V POE supply and buck down to do the same
thing.

We're using the Silvertel PoE pickoff brick. I could share schematics.

>
Cheers
>
Phil Hobbs
>
(*) As an aside, is Accuweather as uniformly pessimistic where you are?
In NY it's always predicting clouds and rain, which frequently don't
show up, and when the do, usually aren't nearly so dreary as they claim.

We're in the Alamany Gap microclimate. It's a cold fog channel between
the ocean and the bay.