
13
Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2125
Data Sheet
Typical Performance Characteristics
Figure 4. Output Voltage vs. Output Current
0 50 100 150 200 250 300
1.70
1.72
1.74
1.76
1.78
1.80
1.82
1.84
1.86
1.88
1.90
AP2125-1.8
V
IN
=2.8V
T
C
=25
o
C
Output Voltage (V)
Output Current (mA)
0 50 100 150 200 250 300
3.30
3.32
3.34
3.36
3.38
3.40
3.42
3.44
3.46
3.48
3.50
AP2125-3.3
V
IN
=4.3V
T
C
=25
o
C
Output Voltage (V)
Output Current (mA)
Figure 5. Output Voltage vs. Output Current
Figure 6. Dropout Voltage vs. Output Current
0 30 60 90 120 150 180 210 240 270 300
0
40
80
120
160
200
240
280
320
360
400
AP2125-1.8
V
IN
=2.8V
T
C
=-40
o
C
T
C
=25
o
C
T
C
=85
o
C
Dropout Voltage (mV)
Output Current (mA)
0 30 60 90 120 150 180 210 240 270 300
0
40
80
120
160
200
240
280
320
360
400
T
C
=-40
o
C
T
C
=25
o
C
T
C
=85
o
C
AP2125-3.3
V
IN
=4.3V
Dropout Voltage (mV)
Output Current (mA)
Figure 7. Dropout Voltage vs. Output Current
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