Data Sheet
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
AP2126
Typical Performance Characteristics
240
3.5
220
200
T
C
=-40 C
o
3.0
180
T
C
=25 C
o
Output Voltage (V)
2.5
Dropout Voltage (mV)
160
140
120
100
80
60
40
20
0
T
C
=125 C
o
2.0
1.5
T
C
=-40 C
o
1.0
T
C
=25 C
o
T
C
=85 C
0.5
0.0
0.1
0.2
0.3
o
V
IN
=4.3V
0.4
0.5
50
100
150
200
250
300
Output Current (A)
Output Current (mA)
Figure 4. Output Voltage vs. Output Current
Figure 5. Dropout Voltage vs. Output Current, V
OUT
=3.3V
120
115
110
105
70
T
C
=-40 C
T
C
=25 C
V
IN
=4.3V, V
OUT
=3.3V
Quiescent Current (
µ
A)
o
o
o
68
66
64
62
60
58
56
54
52
50
-40
I
OUT
=0
V
IN
=4.3V, V
OUT
=3.3V
Quiescent Current (
µ
A)
100
95
90
85
80
75
70
65
60
55
50
0
T
C
=85 C
50
100
150
200
250
300
-20
0
20
40
60
o
80
100
120
Output Current (mA)
Case Temperature ( C)
Figure 6. Quiescent Current vs. Output Current
Figure 7. Quiescent Current vs. Case Temperature
Jun. 2008 Rev. 1.1
6
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
