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SC1453 Arkusz danych(PDF) 11 Page - Semtech Corporation

Numer części SC1453
Szczegółowy opis  150mA Ultra Low Dropout Regulator with Low Noise Bypass
PDF  15 Pages
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Producent  SEMTECH [Semtech Corporation]
Strona internetowa  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC1453 Arkusz danych(HTML) 11 Page - Semtech Corporation

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 2008 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC1453
Output Spectral Noise Density vs. Frequency
vs. Output Voltage, C
OUT = 100µF
Output Spectral Noise Density vs. Frequency
vs. Output Capacitance
Typical Characteristics (Cont.)
Output Spectral Noise Density vs. Frequency
vs. Bypass Capacitance
Output Spectral Noise Density vs. Frequency
vs. Output Current
Power Supply Rejection Ratio vs. Frequency
vs. Output Voltage, C
BYP = 10nF
Power Supply Rejection Ratio vs. Frequency
vs. Output Voltage, C
BYP = 100nF
0.001
0.01
0.1
1
10
0.01
0.1
1
10
100
1000
f (kHz)
VIN = VOUT + 1V
IOUT = 1mA
CIN = 1µF
CBYP = 10nF
TJ = 25°C
Top to bottom:
VOUT = 3.3V
VOUT = 3.0V
VOUT = 2.8V
VOUT = 2.5V
VOUT = 1.8V
VOUT = 1.5V
0.001
0.01
0.1
1
10
0.01
0.1
1
10
100
1000
f (kHz)
VOUT = 1.5V
VIN = 2.5V
IOUT = 1mA
CBYP = 10nF
CIN = 1µF
TJ = 25°C
Left to right:
COUT = 100µF
COUT = 44µF
COUT = 22µF
COUT = 10µF
COUT = 1µF
0.001
0.01
0.1
1
10
0.01
0.1
1
10
100
1000
f (kHz)
CBYP = 1nF
CBYP = 10nF
CBYP = 100nF
CBYP = 1µF
VOUT = 1.5V
VIN = 2.5V
IOUT = 1mA
CIN = 1µF
COUT = 1µF
TJ = 25°C
0.001
0.01
0.1
1
10
0.01
0.1
1
10
100
1000
f (kHz)
VOUT = 1.5V
VIN = 2.5V
CIN = 1µF
CBYP = 10nF
COUT = 1µF
TJ = 25°C
Top to bottom:
IOUT = 150mA
IOUT = 100mA
IOUT = 50mA
IOUT = 1mA
0
10
20
30
40
50
60
70
80
0.01
0.1
1
10
100
1000
f (kHz)
VIN = VOUT + 1V
CIN = COUT = 1µF
CBYP = 10nF
IOUT = 1mA
TJ = 25°C
Top to bottom:
VOUT = 1.5V
VOUT = 1.8V
VOUT = 2.5V
VOUT = 2.8V
VOUT = 3.0V
VOUT = 3.3V
0
10
20
30
40
50
60
70
80
0.01
0.1
1
10
100
1000
f (kHz)
VIN = VOUT + 1V
CIN = COUT = 1µF
CBYP = 100nF
IOUT = 1mA
TJ = 25°C
Top to bottom:
VOUT = 1.5V
VOUT = 2.5V
VOUT = 1.8V
VOUT = 2.8V
VOUT = 3.0V
VOUT = 3.3V



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