sc643 Semtech Corporation, sc643 Datasheet - Page 7

• Manufacturer Part Number: sc643
• Description: Light Management Unit With 4 Ldos And Sempulse Interface
• Manufacturer: Semtech Corporation

Typical Characteristics (continued)
-0.25
-0.75
0.25
0.75
-0.5
-10
-20
-30
-40
-50
-60
-70
100
0.5
80
60
40
20
0
-1
0
0
1
10
4.2
0
V
I
V
LDO2
IN
LDO
=3.7V, V
=1.8V, V
= 1mA, V
LDO Noise vs. Load Current — 1.8V
OUT
3.9
IN
20
PSRR vs. Frequency — 1.8V
LDO2
=3.7V, 25°C, 10Hz < f < 100kHz
=1.8V, I
Line Regulation (LDO2)
= 1.2V to 1.8V, 25°C
1.8V
1.2V
100
OUT
= 50mA
40
3.6
Frequency (Hz)
I
OUT
V
IN
(mA)
(V)
3.3
60
1000
80
3.0
10000
100
2.7
-10
-20
-30
-40
-50
-60
-70
100
80
-2
60
40
20
-3
0
2
-1
3
1
0
0
10
4.2
0
V
I
V
LDOm
IN
LDO
=3.7V, V
=2.8V, V
= 1mA, 25°C, V
LDO Noise vs. Load Current — 2.8V
OUT
3.9
IN
PSRR vs. Frequency — 2.8V
30
=3.7V, 25°C, 10Hz < f < 100kHz
=2.8V, I
Line Regulation (LDOm)
LDOm
100
OUT
= 1.5V to 3.3V, m = 1, 3, or 4
= 50mA
3.6
60
Frequency (Hz)
I
OUT
V
2.8V
IN
(mA)
(V)
3.3
90
1000
120
3.0
SC643
10000
2.7
150
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