Data Sheet
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
AP2126
Typical Performance Characteristics (Continued)
2.0
1.8
1.6
V
OUT
=3.3V
No heatsink
Power Dissipation (W)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-40
I
OUT
V
OUT
-20
0
20
40
60
o
80
100
120
Case Temperature( C)
Figure 13. Load Transient
Figure 12. Power Dissipation vs. Case Temperature
(Conditions: C
IN
=C
OUT
=1µF, V
IN
=4.4V, V
OUT
=3.3V)
V
IN
V
OUT
V
OUT
V
Shutdown
Figure 14. Line Transient
(Conditions: I
OUT
=30mA, C
IN
=C
OUT
=1µF,
V
IN
=4 to 5V, V
OUT
=3.3V)
Figure 15. Soft Start Time
(Conditions: I
OUT
=0mA, C
IN
=C
OUT
=1µF,
V
Shutdown
=0 to 2V, V
OUT
=3.3V)
Jun. 2008 Rev. 1.1
8
BCD Semiconductor Manufacturing Limited