Hi Nikhil,
If you wish to parallel the TPS746-Q1 then you'll need to use one of two techniques.
Technique 1: ballast resistors The first technique uses ballast resistors on the outputs of each LDO. The outputs of the ballast resistors are tied together…
Hi Ross,
If you are attempting to parallel the two LDO outputs, please refer to the following TI Designs for how to parallel the outputs.
www.ti.com/.../TIDA-00270
www.ti.com/.../TIDA-01232
Very Respectfully,
Ryan
Part Number: TPS65381A-Q1 Other Parts Discussed in Thread: TIDA-00270 Hi Team,
Does the TPS65381A-Q1 support load sharing?
My customer is using this part but is currently pulling too much current from the VDD5 or the 5v VSOUT1 outputs. So, is there any…
Hi Mahesh,
We have released a TI Design ( www.ti.com/.../tida-00270 that demonstrates a method to parallel LDOs for higher current applications. This method can be applied to other adjustable LDOs such as TPS7A85.
Very Respectfully,
Ryan
Part Number: TPS7B7702-Q1 Other Parts Discussed in Thread: TIDA-00270 Hi Team,
on the TPS7B7702-Q1, is it possible to connect the outputs together to double the current?
If yes, how does the FB-Pins need to be connected (just one resitor devider for both…
Hi Ryuji,
I have not myself paralleled two TPS7A33 LDOs; however, I would imagine that you could successfully parallel them. TIDA-00270 would be a good reference if you choose to attempt this.
Very Respectfully,
Ryan
Hi Yi,
The Vout and current requirement drastically limit the options available. One thing you could consider is paralleling two TPS7A47 LDOs similar to TIDA-00270. This would give you your voltage and current requirements but will take more components…
Hi Nick,
We have not characterized TPS7A47 with an external pass device to boost current; however, theoretically it should be possible.
Paralleling is a proven option for some applications. We do have a TI Design that explores this topic: www.ti…
I agree with John that starting with an inverting buck boost to start. You can clean up the rail with a negative LDO; however, we do not have a 2A negative LDO at this time. You could use two LDOs in parallel such as in TIDA-00270 in order to hit your…
Hi Robert,
Due to the reverse-current protection, there will not be reverse current as long as the output is greater than 1.8V.
TPS709 is a fixed output voltage device and is not meant for current sharing applications. Below is a link to a Current…
