DC/DC with Positve and Negative OUTPUT (all in one)

lmhynox

Other Parts Discussed in Thread: TPS65124, TPS65130, TPS61040

I´m looking for a Integrated DC/DC converter with two diferents outputs, Positive and Inverter output for a +5V / -5V system

someone knows if texas have a circuit like this?

Thx!!!

over 12 years ago

0 sanchayan maity over 12 years ago

Expert 1810 points

Go through the Power Management Guide to see if they have one.

0 lmhynox over 12 years ago in reply to sanchayan maity

Prodigy 30 points

I did it but i didn´t find anything. ;)

0 lmhynox over 12 years ago in reply to lmhynox

Prodigy 30 points

i need something like that

LT1945fa

http://www.google.es/url?sa=t&rct=j&q=1945fa&source=web&cd=1&ved=0CB4QFjAA&url=http%3A%2F%2Fwww.linear.com%2Fdocs%2FDatasheet%2F1945fa.pdf&ei=pHX0TtDAAcWnhAferJzOAQ&usg=AFQjCNHOwlUWcV829NYcg_Zcq8ZZmURQ_A

0 Jeff F over 12 years ago in reply to lmhynox

TI__Guru**** 151355 points

TPS65124 might work if the power levels are low enough on the negative rail.

TPS65130 will work but is over kill.

TPS61040 Figure 19 shows a boost with discrete, unregulated negative charge pump. As long as the currents pulled from each rail track each other (i.e., are close in magnitude), then the regulation on the negative rail should be acceptable.

Power management

Power management forum

DC/DC with Positve and Negative OUTPUT (all in one)