Data Sheet
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
Typical Performance Characteristics
AP2125
1.90
1.88
1.86
1.84
1.82
1.80
1.78
1.76
1.74
1.72
1.70
0
AP2125-1.8
V =2.8V
IN
T =25oC
C
50
100
150
200
250
300
Output Current (mA)
Figure 4. Output Voltage vs. Output Current
3.50
3.48
3.46
3.44
3.42
3.40
3.38
3.36
3.34
3.32
3.30
0
AP2125-3.3
V =4.3V
IN
T =25oC
C
50
100
150
200
250
300
Output Current (mA)
Figure 5. Output Voltage vs. Output Current
400
360 AP2125-1.8
320
V =2.8V
IN
280
240
T =-40oC
C
200
T =25oC
C
160
T =85oC
C
120
80
40
0
0
30 60 90 120 150 180 210 240 270 300
Output Current (mA)
Figure 6. Dropout Voltage vs. Output Current
400
360 AP2125-3.3
320
V =4.3V
IN
280
240
T =-40oC
C
200
T =25oC
C
160
T =85oC
C
120
80
40
0
0
30 60 90 120 150 180 210 240 270 300
Output Current (mA)
Figure 7. Dropout Voltage vs. Output Current
May. 2010 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
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