I have been slowly researching some replacement voltage regulators..
In my breadboard/prototype set-ups.. I have just been using a good old LM7805 voltage regulator (linear)....etc.
However.. I know in the end I will have more leds (Neopixels).. then in my current prototyping set-up... an hence will need more than the 1A the LM7805 regulator can provide.
I understand linear regulators waste any over voltage from the source as heat.. I understand that while a switching regulator or some sort of Step-up/down convertor might be best.. (but also more involved)..
While there might be upwards of 1.5A for the led string... this will only ever be on/in use for a short period of time... (literally seconds at best).. so I'm hoping heat is no longer a concern.
ROHM BA50DD0T LDO voltage regulator..
Seems to be an exact same pinout as the LM7805 as well..
However... I am to clear on a few things.
1.) Looking at the data sheet.. I cant seem to grasp HOW this is supposed to be set-up in its most basic form? Am I to be looking at page #13? and that first diagram? (I/O equivalence circuit)??? That looks to be a lot of extra components for this regulator? (I guess I was looking for/expecting something easier to implement? Like it only needed a few caps or something??)
2.) The specs on this also has me confused... (hoping someone can explain to me in terms that make more sense?)
it says LDO, but I'm not clear what the voltage drop is? 0.1v @ 1A? so would that be 0.2 @ 2A then?
If this is a FIXED (not adjustable regulator).. +5v output.... how can it take INPUT voltage anywhere from +3v - +25v?) How can I supply this with only +3v? and get +5 from the output?? That seems like a step-up/boost converter?
If I did in fact only supply +3v input.... what would my current output be? I'm leery of this. I want a stable +5v and as close to 2A output as I can get.. but this input voltage acceptance of only +3v has me questioning it?
I was planning on using a +7.4v li-ion pack initially, and thought if I could get a LDO regulator... I would perhaps also allow the use a +6v battery pack.. but this seems to make me think that I can also use a single cell +3.7v li-ion battery?
I'm looking at the through hole - TO-220-3 package...
Question about Eagle/implementation... If you place this part in Eagle... does the footprint/silkscreen displayed account for the part to be bent over/laid down on the pcb? Or is it supposed to be standing vertical/straight up?
(I'm hoping for the former so I can bend it over, and place it between 2 female header rows.)
I'm not pro at Eagle... but I have only ever used SMD parts... never any through hole parts before..