Other Parts Discussed in Thread: TPS54311, TPS54611
I am designing a board using TI Dual Core Delfino Microcontroller F28377D. This microcontroller needs 3.3V and 1.2V supply. In my design, +24V power supply is available which I will give to a DC-DC to generate +5V. From this +5V, I want to generate 3.3V and 1.2V using TI Power Management IC (TPS). I want to use TPS ic having small footprint, requiring very few external components in order to save PCB area.
With respect to TPS ICs, TI offers huge number of options. I find that TPS82085 is available in very small footprint and needs very few external components. However, its datasheet does not say anything about using it for Microprocessors/FPGAs in its application section.
On the other hand, some other datasheets of TPS ICs mention that they are very much suitable for microprocessors and FPGAs, e.g., TPS54311, TPS54611.
Now please guide me, Can I use TPS82085 to generate 3.3V and 1.2V from a DC-DC (5V output) for the above mentioned TI microncontroller? Or do you recommend to use ICs like TPS54311 for this purpose, because they are best suited for microprocessors as mentioned in their datasheet?
Could you please also tell me, what are the special parameters or requirement of power supply for DSP, microcontroller, FPGA, that specific TPS ICs are only best suited for them.
Regards,
