HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR
Typical Application
Data Sheet
AP2122
VIN=4V
VIN
CIN
1µF
AP2122-3.0
VIN
VOUT
GND
CE NC
VOUT=3V
VOUT
COUT
1µF
Note: Filter capacitors are required at the AP2122's input and output. 1µF capacitor is required at the input. The
minimum output capacitance required for stability should be more than 1µF with ESR from 0.01Ω to 100Ω.
Ceramic capacitors are recommended.
Figure 22. Typical Application of AP2122
Sep. 2006 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
18