Supply VDDIO with bufferd VDAC output | Cypress Semiconductor
Supply VDDIO with bufferd VDAC output
I'm designing circuit using CY8C3446LTI-083 which has only 5V supply and have to interface 3.3V system (I need vddio0 to be 3.3V). I thought It can be done without regulator by following way.
1. Supply VDDA, and VDDD with 5V.
2. Set VDAC8 to generate 3.3V, use OpAmp0 as output buffer.
3. connect OpAmp0 output(P0) and vddio0 externally.
Is my thought correct? or other ideas?
Thanks in advance