RT9172F-14CT Ver la hoja de datos (PDF) - Richtek Technology
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RT9172F-14CT Datasheet PDF : 16 Pages
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RT9172
Preliminary
Typical Operating Charateristics
PSRR
0
CIN = 1nF
-10 COUT = 10µF Electrolytic Capacitor
VIN = 5V
-20 VOUT = 2.5V
TA = 25°C
-30
-40
10mA
-50
100mA
-60
-70
10
100
1K
10K
100K
1M
Frequency (Hz)
Noise Signal & Spectrum Distribution
Time (mS)
0
2
4
6
8
10
1250000
156000
-15200
≈
80
40
CIN = 1µF
COUT = 10µF Tantalum Capacitor
Load = 10mA
Sampling Rate = 250KHz
0
0
25
50
75
100
125
Frequency (KHz)
Noise Signal & Spectrum Distribution
Time (mS)
0
2
4
6
8
10
1200000
1600
-1102000
≈
80
40
CIN = 1µF
COUT = 68µF Tantalum Capacitor
Load = 10mA
Sampling Rate = 250KHz
0
0
25
50
75
100
125
Frequency (KHz)
PSRR
0
CIN = 1nF
-10 COUT = 68µF Tantalum Capacitor
VIN = 5V
-20 VOUT = 2.5V
TA = 25°C
-30
-40
10mA
-50
-60
100mA
-70
10
100
1K
10K
100K
1M
Frequency (Hz)
Noise Signal & Spectrum Distribution
Time (mS)
0
2
4
6
8
10
1200000
1600
≈ -110200
80
40
CIN = 1µF
COUT = 10µF Tantalum Capacitor
Load = 100mA
Sampling Rate = 250KHz
0
0
25
50
75
100
125
Frequency (KHz)
Noise Signal & Spectrum Distribution
Time (mS)
0
2
4
6
8
10
1200000
1600
≈ -1102000
80
40
CIN = 1µF
COUT = 68µF Tantalum Capacitor
Load = 100mA
Sampling Rate = 250KHz
0
0
25
50
75
100
125
Frequency (KHz)
www.richtek-ic.com.tw
6
DS9172-03 April 2002
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