Ed's absolutely right. At 25C ambient, that's already right at the limit for that package, and you shouldn't assume a 25C ambient for the innards of an instrument.
Use a version in a beefier package.
-- Cheers
Tom
--
Prof. Thomas H. Lee
Allen Ctr., Rm. 205
420 Via Palou Mall
Stanford University
Stanford, CA 94305-4070
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On 10/9/2023 4:43 AM, Ed wrote:
Still think that an SOT-23 package is a bit small for 50mA with a 7V drop.
For a small increase in $$ an SOT-89 or SOT-223 package regulator would be a better choice.
