MAS9123(2000) 查看數據表（PDF） - Micro Analog Systems Oy
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MAS9123 Datasheet PDF : 10 Pages
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DETAILED DESCRIPTION
2.815
2.81
2.805
2.8
2.795
2.79
2.785
2.78
2.775
2.77
0
MAS9123 load regulation transient, CL=1uF.
VOUT
200 400 600 800 1000 1200 1400 1600 1800
T/us
Figure 5. Typical load regulation transient. CL = 1µF,
IOUT = 0.5 mA...50 mA (2 µs).
2.815
2.81
2.805
2.8
2.795
2.79
2.785
2.78
2.775
2.77
0
MAS9123 load regulation transient, CL=470nF.
VOUT
200
400
600
800
1000
1200
1400
1600
1800
T/us
Figure 6. Typical load regulation transient. CL = 470 nF,
IOUT = 0.5 mA...50 mA (2 µs).
MAS9123 line transient response.
2.802
7.8
2.801
6.8
2.8
5.8
2.799
2.798
4.8 VOUT
VIN
3.8
2.797
0
2.8
10
20
30
40
50
T/us
Figure 7. Line transient response. CL = 1µF, IOUT = 10 mA.
DA9123.002
26 September, 2000
PSRR vs. frequency
75
70
65
60
Cload=1uF
Cload=470nF
55
50
45
40
0.1
1
10
100
1000
Frequency/ kHz
Figure 8. Power Supply Rejection Rate vs. frequency.
IOUT = 50 mA.
MAS9123 noise spectral density
1000
100
10
100
1000
10000
Frequency /Hz
100000
Figure 9. Noise spectral density vs. frequency. IOUT = 50 mA,
CL = 1µF, CBYPASS = 10 nF.
200
180
160
140
120
100
80
60
40
20
0
0
MAS9123 dropout voltage vs. load current
T=27C
T=85C
T=-40C
10
20
30
40
50
60
70
80
Load current (mA)
Figure 10. Dropout voltage vs. load current.
6 (10)
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