Preliminary Datasheet
HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR
AP2121
Typical Performance Characteristics
1.5
1.2
0.9
0.6
0.3
0.0
0
AP2121-1.5
V =2V
IN
V =2.5V
IN
V =3V
IN
50
100
150
200
250
300
350
Output Current (mA)
Figure 4. Output Voltage vs. Output Current
3.5
3.0
AP2121-3.0
2.5
V =3.3V
IN
V =4V
2.0
IN
V =6V
IN
1.5
1.0
0.5
0.0
0
50
100
150
200
250
300
350
Output Current (mA)
Figure 5. Output Voltage vs. Output Current
1.50
1.25
1.00
0.75
0.50
AP2121-1.5
0.25
I =30mA
OUT
0.00
0
1
2
3
4
5
6
7
Input Voltage (V)
Figure 6. Output Voltage vs. Input Voltage
3.50
3.25
3.00
2.75
2.50
AP2121-3.0
2.25
I =30mA
OUT
2.00
0
1
2
3
4
5
6
7
Input Voltage (V)
Figure 7. Output Voltage vs. Input Voltage
Mar. 2007 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
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