The 2312 (6032 Metric) case size (6.00 mm x 3.20 mm footprint, 2.80 mm seated height) is a standard tantalum footprint that fits most PCB layouts without a respin.
Ripple current and ESR budget
With 150 mOhm ESR, this capacitor can handle moderate ripple currents typical of a switching regulator output. The ESR sets the ripple voltage: at 1 A ripple current, expect 150 mV ripple. For lower ripple, a ceramic cap in parallel or a lower-ESR tantalum would be needed. The ±20% tolerance on 22 µF means the actual capacitance can range from 17.6 µF to 26.4 µF. This is typical for tantalum electrolytics and should be accounted for in timing or filter corner-frequency calculations.