Data Sheet
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
AP2128
Typical Performance Characteristics (Continued)
100
IOUT=10mA
90
IOUT=300mA
80
ripple=1Vpp, COUT=1µF, VOUT=0.8V
70
60
50
40
30
20
10
0
V
OUT
V
Shutdown
100
1000
10000
100000
Frequency (Hz)
Figure 36. Soft Start Time
Figure 37. PSRR vs. Frequency
(Conditions: IOUT=0mA, CIN=COUT=1µF,
VShutdown=0 to 2V, VOUT=0.8V)
100
70
IOUT=10mA
90
80
70
60
50
40
30
20
10
0
IOUT=300mA
60
50
40
30
20
10
ripple=1Vpp, COUT=1µF, VOUT=3.3V
IOUT=10mA
IOUT=300mA
VOUT=5.2V, COUT=1µF, ripple=0.5Vpp
100
1000
10000
100000
100
1k
10k
100k
Frequency (Hz)
Frequency (Hz)
Figure 38. PSRR vs. Frequency
Figure 39. PSRR vs. Frequency
Sept. 2010 Rev. 2.0
BCD Semiconductor Manufacturing Limited
18
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
