SC250 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC250' PDF : 18 Pages View PDF
POWER MANAGEMENT
Typical Characteristics (Cont.)
Control Transfer Function IOUT = 0.3A
6.0
5.0
VIN=5.5V
VIN=4.2V
4.0
VIN=3.6V
3.0
VIN=3.0V
`
VIN=2.7V
2.0
1.0
0.0
0
0.2
0.4
0.6
0.8
1
VDAC (V)
1.2
1.4
1.6
0.006
0.005
0.004
Dynamic Supply Current vs. VIN
VOUT=2.1V
VOUT=1.5V
0.003
0.002
VOUT=0.3V
0.001
0
2.5
3
3.5
4
4.5
5
5.5
6
VIN (V)
Load Regulation, VOUT = 2.1V
2.2
2.15
2.1
2.05
2
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
IOUT (A)
SC250
PRELIMINARY
Auto Bypass Function, VOUT = 3.25V
4.1
3.9
3.7
VIN Up
3.5
3.3
VIN
Down
3.1
2.9
2.7
2.5
2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
VIN(V)
Shutdown Current vs. Temperature, VIN = 3.6V
16
14
12
10
8
6
4
2
0
-40 -20
0
20
40
60
80
100 120
TJ (°C)
Line Regulation, VOUT = 1.5V
1.52
1.515
150mA
1.51
50mA
1.505
1.5
1.495
300mA
600mA
1.49
2.5
3
3.5
4
4.5
5
5.5
6
TA (°C)
© 2006 Semtech Corp.
12
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