Diodes AZ2940 - Manual (Page 14)

1A ULTRA LOW DROPOUT LINEAR REGULATOR AZ2940
Data Sheet
14
Sept. 2011 Rev. 2. 4 BCD Semiconductor Manufacturing Limited
Typical Performance Characteristics (Continued)
Figure 17. Load Transient
I OUT
(
0
.5
A/
Div)
∆
V
OU
T
(
0
.2
V/
Div) C
OUT
=10 µF
AZ2940-5.0
0 200 400 600 800 1000
0.01
0.1
1
10
100
Stable Range
O
u
tput
Ca
pacit
o
r ES
R (
Ω
)
Output Current (mA)
C
OUT
=10 µ F
V
OUT
=5V
T
A
=25 O C
Unstable Range
Figure 18. Load Transient Figure 19. Line Transient
I OU
T
(
0
.5
A
/Div)
∆
V
OU
T
(0
.2V/Div)
I
OUT
=10mA C
OUT
=47 µF
AZ2940-5.0 AZ2940-5.0
Figure 16. Output Capacitor ESR vs. Output Current
Time (200 µs/Div)
0
-0.2
-0.5
0
0.4
0.2
Time (200 µs/Div)
∆
V
IN
(
0
.5
V/
Div)
∆
V
OU
T
(0
.02
V
/Div
)
Time (200 µs/Div)
0.5
1
0
-0.2
-0.5
0
0.4
0.2
0.5
1
0
-0.5
0.02
0.06
0.04
0.5
1
0