Other Parts Discussed in Thread: TPS65261, TPS65263
Dear Sir/Madame,
I have a question about the TPS65581. I noticed that the device has a wide input voltage range (4.5 - 18V) and a output voltage range of 0.76 - 7V. The output voltage can be adjusted with the feedback-loop. But there is no documentation about the ratio between input voltage vs the output voltage. According to the datasheet it seems as if it does not matter what the input voltage is, of course in the range of 4 - 18V, and that it can be adjusted to a desired value with the aid of the resistance ratio in the feedback loop (somewhere in the range of 0.76 - 7V). But in Figure 10 of the datasheet, the diagram shows a ratio between Input and a specific Output voltage. There it shows a desired 3.3V output voltage, but depending of the input voltage, the desired output voltage is achieved yes or no. In this case, when you use a input voltage lower then 6V, the desired output voltage will never be achieved (in this case, the 3.3V).
Here is my requirement:
My input voltage is 5V. My desired output voltage is 3.6V with an output current of circa. 1A.
Is this achievable with this IC?
Kind regard,
Sergio van Vliet
