New Texas Instruments negative power generator!

[StephenGiles]

http://focus.ti.com/lit/ds/symlink/ptn78060a.pdf

Looks interesting!
Stephen

[Ben N]

Neat.  A bit much to put in a pedal, but there seems to be plenty of current for a pedalboard negative supply, and variable Vo might be useful to compensate for the effect of all the filtering it seems to need   .

Thanks
Ben

[StephenGiles]

Of course you can put it a pedal, it measures no more than 4 NJM4558s long by 2 wide.
Stephen

[The Tone God]

Did you look at the price ?

BTW, there a many different negative voltage converters availible. This one has nothing special.

Andrew

[Ben N]

Stephen:
I didn't mean just the chip by itself, but with the filtering it apparently needs in any ripple-sensitive environment.
Ben

[StephenGiles]

Here are some pictures of the beast alongside a dual opamp - ssm2135.



There are quite a few minature components squeezed on that double sided board!!
Stephen

[toneman]

it's got a coil on the pcb.
this will generate more EMF that the switchedcap types.
(EMF--ElectroMagneticField)
the switchedcap units(7660) are charge-pump types, use no
inductors, &, 4 the most part, have no EMF.
shields up Scotte
stayshielded
tone

[Paul Perry (Frostwave)]

Without testing we'll never know, but I don't think the coil is necessarily going to be a problem. It's small, it's presumeably efficient, and the frequency is bound to be WAY past audio. A switched cap with a poorly thought out grounding scheme could be way worse.