22 µF bulk decoupling at 6.3 V rail
The TPSS226K006R0900: The 900 mΩ ESR (equivalent series resistance) governs ripple current handling and self-heating — for a 22 µF part at 6.3 V, this ESR keeps the ripple current rating within the typical 0.3-0.5 A range for the 1206 package, suitable for output filtering in low-voltage DC-DC converters.
Package and board-fit reality
The molded construction provides mechanical stability during reflow and resists cracking from board flex, a common failure mode for uncoated tantalum chips.
