Other Parts Discussed in Thread: AM4376, TMDXEVM438X-EPOS, TMDSEVM437X
The TPS65218D0 DCDC4 has the following specifications.
DCDC4 (3.3-V BUCK-BOOST) / ANALOG AND I/O
COUT Output capacitance value min 40 typ 80 max 100 µF
Is it a problem if the bypass capacitor supplied by DCDC4 uses more than 100uF?
Customer want to use VDDSHV1..11 of AM4376 only at 3.3V, and if it is used with the recommended VDDSHV1..11 = 10.02 or 10.06uF of the following recommended value of AM4376 datasheet, the total exceed 100uF.
In addition, they think that total = about 200uF because other devices need a bypass capacitor.
5-10. Power-Supply Decoupling Capacitor Characteristics