Data Sheet
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
AP2129
Typical Performance Characteristics
100
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
90
80
70
V
OUT
=0.8V
No Load
Tc=25 C
o
Output Voltage (V)
Supply Current(
µ
A)
500
60
50
40
30
20
10
0
0.0
T
C
=-40 C
o
T
C
=25 C
o
T
C
=125 C
V
IN
=4.4V
0
50
100
150
200
250
300
350
400
450
o
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Output Current (mA)
Input Voltage(V)
Figure 4. Output Voltage vs. Output Current
Figure 5. Supply Current vs. input Current
120
110
100
60
V
OUT
=0.8V
V
IN
=1.8V
T
C
=25 C
Supply Current(
µ
A)
o
58
56
54
V
OUT
=0.8V
V
IN
=1.8V
No Load
Supply Current (
µ
A)
90
80
70
60
50
40
0.00
52
50
48
46
44
42
0.03
0.06
0.09
0.12
0.15
0.18
0.21
0.24
0.27
0.30
40
-40
-20
0
20
40
o
60
80
Output Current(A)
Case Temperature( C)
Figure 6. Supply Current vs. Output Current
Figure 7. Supply Current vs. Case Temperature
Oct. 2009 Rev. 1.1
8
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
