You should definitely order the EVM and test it with this extreme setup. You might add this circuit to increase the soft start time: http://www.ti.com/lit/an/slva307/slva307.pdf
If Vin is removed, Vout will appear on Vin due to the high side MOSFET…
The TPS62260 D/S does not have the last sentence in that paragraph.
For your application, the TPS63020 is often used or possibly the TPS62750 which is designed to support large output caps.
Other Parts Discussed in Thread: TPS62750 Hey all,
I've looked around the products available, and I can't seem to find what I'm looking for. Perhaps somebody knows something that'll do what I need.
I'm looking for an IC that'll switch between power…
The TPS62240 , TPS62260 ,and TPS62290 are not designed to work with large output capacitors. The internal compensation is designed for smaller (4.7uF to 22uF) ceramic capacitors. Using larger capacitors changes the power stage transfer function, which…
Hello
There is a path from the output of the regulator toward the input through the body diode of the power MOSFET internal to the converter.
This path is not shown in the block diagram explicitly, however there will always be a body diode from source…
Part Number: TPS62740 Other Parts Discussed in Thread: TPS61291 , TPS61021A , TPS61099 HI,
We are looking for an ultra low power buck in order to charge a 1F supercapacitor at 3.6V, the system is powered by a 3.6V LiSOCl battery which can provide only…
Hello
I think it is best to prevent any back-feed from an external source into the regulator.
Please see the following application notes.
8640.slyt689_backfeed.pdf
3463.slvae57b.pdf
Hello,
The UCC3806 is a dual output controller though it can be used in a flyback where only one of the outputs are used to drive the switch it might be better to choose a single output controller. Look at page 46 of the attached under General Purpose…
Siyu,
I think the toggle flip-flop in the block diagram on page one of the spec should have let you know that the max you will get with this device is 50% duty.
Go to page 43 and 44 of the attached and select a more suitable part.
