TYPICAL OPERATING CHARACTERISTICS
V
IN
= V
OUT (NOMINAL)
+ 0.5V or 2.5V (whichever is greater), C
IN
= 1µF, C
OUT
= 1µF, T
A
= +25℃, unless otherwise noted.
Line-Transient Response
4.5V
3.5V
I
LOAD
= 150mA
3.1V
3V
2.9V
V
OUT
50mA
0mA
V
OUT
= 3V
100µS/div
V
IN
3.05V
3V
2.95V
Load-Transient Response
V
IN
= V
OUT
+ 0.5V
I
LOAD
= 0mA to 50mA
C
IN
= 1
μ
F
V
OUT
I
LOAD
V
OUT
= 3V
40µS/div
Load-Transient Response Near Dropout
3.05V
3V
2.95V
V
OUT
= 3V
V
OUT
Power-Supply Rejection Ratio
vs.Frequency
80
70
60
PSRR(dB)
50
40
30
20
10
0
0.01
C
OUT
= 1μF
C
OUT
= 10μF
I
LOAD
= 50mA
50mA
0mA
C
IN
= 1μF
V
IN
= V
OUT
+ 0.1V
I
LOAD
= 0mA to 50mA
40µS/div
I
LOAD
0.1
1
10
100
1000
Frequency(kHz)
Region of Stable C
OUT
ESR vs.Load Current
100
1200
1100
Current limit(mA)
Current limit vs.Temperature
V
OUT
= 3.3V
10
C
OUT
ESR(
Ω
)
C
OUT
= 10μF
1000
900
800
700
600
500
400
300
1
Stable Region
0.1
C
OUT
= 1μF
0.02
0.01
0
50
100
150
200
Load Current(mA)
250
300
-40 -20
0
20 40 60 80
Temperature(℃)
100 120 140
５
SG2011
SGMICRO [ Shengbang Microelectronics Co, Ltd ]
