Other Parts Discussed in Thread: TPS7A90, LP38512
I wants to use TPS7A90 or LP38512-ADJ(SO package) for a project.
And I want to select the device which has better thermal performance.
Then I compared Theta_JA of both devices.
Theta_JA of LP38512-adj(SO) is 168 C/W while TPS7A90 is 56.9 C/W.
Are both Theta_JA parameters specified under the same condition?
I think Theta_JA is JEDEC standard and it should be under the same condition to be able to compare the package thermal performance.
But I feel LP38512-adj(SO)’s Theta_JA, 168 C/W, is too high although it has power pad.