This is the tube heater supply for a phono preamp I built many years ago, the LT1084 is bad and I would like to use LM1084. The load is 1.2A. I don't see a problem but want to make sure I didn't miss something. I am also asking as a general question as I tend to build similar power supplies.
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I think you meant no LESS than 10uF on the output pin, correct? Too low a value, and you can run into stability problems, as described in the data sheets.
I meant what I wrote.
No more than 10uF (meaning use 10uF, low ESR or tant bead type). Any more than 10uF and the regulator will not regulate properly, any less can lead to instability, exactly as the data sheet states.
Pin 2 is the output, yes.
No more than 10uF (meaning use 10uF, low ESR or tant bead type). Any more than 10uF and the regulator will not regulate properly, any less can lead to instability, exactly as the data sheet states.
Pin 2 is the output, yes.
Hi Jon, the data sheet say's differently:
Output capacitance can be increased indefinitely to improve transient response and stability.
Perhaps your experience is different, I'm just echoing TI's statement.... Cheers, Dave
Output capacitance can be increased indefinitely to improve transient response and stability.
Perhaps your experience is different, I'm just echoing TI's statement.... Cheers, Dave