Other Parts Discussed in Thread: AMIC110, TPS650250
Hi all.
I have examined all of the power PMIC notes regarding the powering of my AM243x design using either the AM2341 or AM2432 processor, and I don't find a pre-programmed PMIC model that contains the configuration I need. I am loathe to program them myself, as this seems to be a bit cumbersome for production. I don't need enough (I think!) for TI to create a part number and factory program an LP8733x or TPS652XX part. (I need about 300 parts for this first run)
I have adapted the design I successfully used for my previous AMIC110 design to provide the voltages I need.
The configuration I have set up in the 650250 is as follows:
DCDC1 -- V_Core at 0.85V, 1.6A
DCDC2 1.8V at 0.8A -- Used for VDD_IO for processor and DP83822 PHYs, and other VDD_IO
DCDC3 3.3V at 0.8A -- Used for powering other parts, not the AM243x
LDO1 1.8V at 200 ma -- 1.8V processor analog power
LDO2 1.8V at 200 ma -- Ethernet PHY analog supplies
It would be nice to have more power available for future designs that might need more V_Core power or more LDO power, so using a TPS652XX part with the proper programming woud be great.
I would like to know if it looks like this solution is feasible. I have attached the schematic page with the PMIC implementation.
Thank you for your assistance!
John Ford
