Electronics > Beginners
Boost-Buck Converters and a reference pin
(1/1)
roogadget:
I have spent a great amount of time looking for a buck boost converter that outputs 12V.

Turns out it requires an external reference of 5V for the PG pin.

Do these regulators always require a reference?
It seems odd to a beginner (me) that it would require an additional regulator just to use one.
aheid:
From the data sheet:

--- Quote ---PS   7   I   D   Logic-level input signal to enable and disable low-power mode. The power mode is low-power mode when this pin is high (1) and is normal mode when this pin is low (1).
--- End quote ---

So seems to me that if you're not interested in low-power mode, you can just tie that pin to ground.
sd:
PG 15 O D
Output power good pin. This pin is an open-drain pin. The status of the power-good output is good
when this pin is high (1) and has a failure when this pin is low (0)

If you don't need PGOOD, just ignore that pin.
aheid:

--- Quote from: sd on October 06, 2018, 11:34:23 am ---PG

--- End quote ---

Man I need to learn to double-check things when posting before breakfast...
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