Diodes AP2821 - Manual (Page 14)

Advance Datasheet
High-side Power Distribution Switch with Enable AP2821
Mar. 2013 Rev 2. 0 BCD Semiconductor Manufacturing Limited
14
Typical Application
Note 2: 4.7
μF input capacitor is enough in most application cases.
If the PCB trace of power rail to V
IN
is long, larger input capacitor is necessary.
Figure 30. AP2821 Typical Application