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SC1452 Datasheet(PDF) 12 Page - Semtech Corporation

Part # SC1452
Description  Dual 150mA LDO Regulator with Programmable Reset
PDF  15 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC1452 Datasheet(HTML) 12 Page - Semtech Corporation

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 2006 Semtech Corp.
www.semtech.com
SC1452
POWER MANAGEMENT
Typical Characteristics (Cont.)
Output Spectral Noise Density vs. Frequency
vs. Bypass Capacitance
Output Spectral Noise Density vs. Frequency
vs. Output Current
PSRR vs. Frequency vs. Output Voltage
(C
BYP = 10nF)
PSRR vs. Frequency vs. Output Voltage
(C
BYP = 100nF)
0.01
0.1
1
10
0.01
0.1
1
10
100
1000
f (kHz)
VOUT = 1.8V
VIN = 2.8V
IOUT = 50mA
CIN = 1µF
COUT = 2.2µF
TJ = 25°C
CBYP = 100pF
CBYP = 1nF
CBYP = 10nF
CBYP = 100nF
CBYP = 1µF
0.001
0.01
0.1
1
10
0.01
0.1
1
10
100
1000
f (kHz)
VOUT = 1.8V
VIN = 2.8V
CIN = 1µF
CBYP = 10nF
COUT = 2.2µF
TJ = 25°C
Top to bottom:
IOUT = 150mA
IOUT = 100mA
IOUT = 50mA
IOUT = 1mA
25
30
35
40
45
50
55
60
65
70
75
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 = 1.8V
VOUT = 2.5V
VOUT = 2.8V
VOUT = 3.0V
VOUT = 3.3V
25
30
35
40
45
50
55
60
65
70
75
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 = 1.8V
VOUT = 2.5V
VOUT = 2.8V
VOUT = 3.0V
VOUT = 3.3V



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