TYPICAL OPERATING CHARACTERISTICS
VIN = VOUT(NOMINAL) +1V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted.
Output Noise Spectral Density
vs.Frequency
Output Noise vs.BP Capacitance
80
70
60
50
40
30
20
10
0
10
1
f=10Hzto100kHz
COUT=10μF
CBP =0.01μF
LOAD =10mA
I
LOAD =10mA
I
VOUT =3.0V
COUT =1μF
0.1
VOUT =2.5V
COUT =10μF
0.01
0.01
0.1
1
10
100
1000
0.001
0.01
0.1
Frequency(kHz)
BP Capacitance(µF)
Output Noise 10Hz To 100KHz
Output Noise vs.Load Current
f=10Hzto100kHz
100
VOUT = 3.3V
90
80
70
60
50
40
30
20
10
0
CBP =0.01μF
COUT =10μF
COUT = 10μF
ILOAD = 10mA
CBP = 0.1μF
VOUT =3.0V
VOUT =2.5V
1
10
100
1000
Time(200μs/div)
Load Current(mA)
Power-Supply Rejection Ratio
vs.Frequency
Region of Stable COUT ESR vs.Load Current
80
70
60
50
40
30
20
10
0
100
10
CBP =0.1μF
LOAD =50mA
I
C
= 10μF
OUT
COUT =10μF
1
C
= 1μF
OUT
Stable Region
0.1
COUT =1μF
0.02
0.01
0.01
0.1
1
10
100
1000
0
100
200
Load Current(mA)
300
400
Frequency(kHz)
７
SG2003/A
SG2004/A
SGMICRO [ Shengbang Microelectronics Co, Ltd ]
