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SC644 Datasheet(PDF) 7 Page - Semtech Corporation

No. de pieza SC644
Descripción Electrónicos  Light Management Unit with 4 LDOs and SemPulse짰Interface
PDF  26 Pages
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Fabricante Electrónico  SEMTECH [Semtech Corporation]
Página de inicio  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC644 Datasheet(HTML) 7 Page - Semtech Corporation

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SC644
7
PSRR vs. Frequency — 2.8V
PSRR vs. Frequency — 1.8V
Line Regulation (LDO2)
LDO Noise vs. Load Current — 1.8V
Line Regulation (LDOm)
VIN=3.7V, VOUT =1.8V, IOUT = 50mA
-70
-60
-50
-40
-30
-20
-10
0
10
100
1000
10000
Frequency (Hz�
VIN=3.7V, VOUT =2.8V, IOUT = 50mA
-70
-60
-50
-40
-30
-20
-10
0
10
100
1000
10000
Frequency (Hz�
0
20
40
60
80
100
0
20
40
60
80
100
IOUT (mA�
VLDO=1.8V, VIN=3.7V, 25°C, 10Hz < f < 100kHz
LDO Noise vs. Load Current — 2.8V
0
20
40
60
80
100
0
30
60
90
120
150
IOUT (mA�
VLDO=2.8V, VIN=3.7V, 25°C, 10Hz < f < 100kHz
Typical Characteristics (continued)
-1
-0.75
-0.5
-0.25
0
0.25
0.5
0.75
1
2.7
3.0
3.3
3.6
3.9
4.2
ILDO2 = 1mA, VLDO2 = 1.2V and 1.8V, 25°C
1.2V
1.8V
VIN (V�
-3
-2
-1
0
1
2
3
2.7
3.0
3.3
3.6
3.9
4.2
VIN (V�
ILDOm = 1mA, 25°C, VLDOm = 2.8V, m = 1, 3, or 4
2.8V



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